Toronto Blue Jays starting pitching prospect Trey Yesavage made an excellent first impression in Monday's 2-1 win over the Rays. Making his big-league debut, Yesavage pitched five innings, allowing one run on three hits and two walks with nine strikeouts. His over-the-top delivery and splitter helped him set the franchise record for most strikeouts in an MLB debut. Yesavage is the team's top prospect and is the No. 25 overall prospect, per MLB Pipeline. He put together strong numbers this season across four minor-league levels, compiling a 3.12 ERA, a 0.97 WHIP, and a ridiculous 41.1% strikeout rate in 98 IP. It remains to be seen how the Blue Jays will deploy Yesavage the rest of the way, but his next turn in the rotation would likely be a decent matchup at the Royals. Yesavage would be worth starting after his electric debut.

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Arizona Diamondbacks starting pitcher Zac Gallen has had a disappointing season, but he has looked much better in his last few outings, and has done a good job establishing his value before becoming a free agent this offseason. Gallen allowed just two hits and one run to the Giants on Monday night, striking out six in six innings. He is 12-14 on the season with a 4.73 ERA and 4.51 FIP, but he has been much better over his last handful of outings, going 3-1 with a 2.05 ERA and 3.41 FIP, while striking out 29 batters in 30 2/3 innings. Gallen will be a fascinating free agent to watch, but before he hits the open market, he'll probably make two more starts this season, with his next outing scheduled to be in a tough home mtachup on Sunday afternoon against the Phillies.

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Philadelphia Phillies first baseman Bryce Harper smashed his 27th homer of the year on Monday night against the Dodgers, and the Phillies clinched the NL East with their 6-5, extra-inning win in Los Angeles. Harper went 1-for-3 with a pair of walks, and his eighth-inning homer gave the Phillies the lead at that point in the game, before the Dodgers rallied to tie the game. Harper is hitting .320 with three homers and a .486 wOBA over his last seven games, and the veteran looks to be ramping up for more postseason heroics as the Phillies look to make a run deep into October. Harper is a strong DFS consideration while he's hitting the ball so well and makes a strong start in all formats over the final week of the season.

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Arizona Diamondbacks shortstop Gerardo Perdomo went 3-for-3 with two walks in his team's 8-1 win over the visiting Giants on Monday night. Perdomo had a double, a triple, a run scored, and two RBI to help carry his team to the victory. Perdomo has been outstanding lately and is putting the finishing touches on a true breakout season. The 25-year-old righty has posted a .290 batting average with 19 home runs, 26 stolen bases, and a .371 wOBA on the season. He's been even hotter since August 1, hitting .325 with eight homers, 11 stolen bases, and a .423 wOBA. Perdomo has established himself as a key part of the top of the order and will be a shortstop to target as a strong fantasy starter after the elite options are off the board next season.

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Cincinnati Reds first baseman/outfielder Spencer Steer (neck) was originally part of the team's lineup for Monday's game, but he had to be scratched due to neck spasms. Steer's playing time has been limited over the last couple of weeks since the arrival of top prospect Sal Stewart, who moved from third base to first base in Monday's lineup adjustment. Steer is hitting only .208 since the All-Star break, but does have six home runs in those 46 games. On the season, he has 17 homers, a .237 batting average, and a .309 wOBA. Steer could be back in the lineup soon as the Reds chase the NL Wild Card, but for now, he's considered day-to-day.

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Tampa Bay Rays first baseman Jonathan Aranda (wrist) is lined up to face live pitching at the team's spring training facility in Port Charlotte, and how he feels after the session will determine if he returns for the last week of the regular season, according to Rays manager Kevin Cash. The 27-year-old was in the midst of a breakout season before landing on the 10-day injured list with a fractured wrist. Aranda hit .316 with 12 homers and a .377 wOBA in his 103 games, but he may get a chance to add to those stats in the final week of the season. He was hitting well enough before the injury that he is worth a look if he's on waivers if he does get activated for the end of the season.

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Los Angeles Dodgers relief pitcher Brock Stewart (shoulder) is close to returning to action for the Dodgers after being shut down in mid-August due to right shoulder inflammation. The Dodgers acquired Stewart from the Twins at the trade deadline, but he only pitched 3 2/3 innings for the team before his time on the injured list. In his 43 games in total this season, Stewart has a 2.63 ERA and 3.20 FIP, with 44 strikeouts and 37 2/3 innings. The team expects Stewart to pitch on Tuesday and Thursday before being activated for the final week of the regular season. While he has limited fantasy appeal as a middle reliever, Stewart could earn a spot on the postseason roster if he finishes the year strong.

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Twins' SP Simeon Woods Richardson recorded 11 strikeouts in 6 innings collecting the win in a 7-0 win over the Yankees on Monday, Sep. 15.

Baltimore Orioles catcher Adley Rutschman (oblique) is expected to begin a rehab assignment on Tuesday, per MLB.com's Ryan Herrera. Rutschman was placed on the 10-day injured list retroactive to August 18 with a right oblique strain. Interim manager Tony Mansolino said that Rutschman will need about a week before he will be ready to rejoin the O's. It has been a disappointing season for the 27-year-old, who also missed time with a left oblique strain. In a season with so many fantasy options at catcher, Rutschman has struggled, with a .227/.310/.373slash line, nine home runs, and 29 RBI in 348 plate appearances.

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The Baltimore Orioles are expected to activate second/third baseman Jordan Westburg (ankle) from the 10-day injured list ahead of Tuesday's game against the White Sox, per MLB.com's Ryan Herrera. Westburg was placed on the IL retroactive to August 19 with a right ankle sprain. He played three rehab games with Triple-A Norfolk and was with the O's on Monday. Interim manager Tony Mansolino said he plans to have the 26-year-old serve as the designated hitter Tuesday, and then have him play third base the next two games. Westburg came into the season as an intriguing fantasy option, and he has delivered when on the field, slashing .276/.326/.473 with 15 home runs, 34 RBI, and one stolen base in 304 plate appearances.

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Baltimore Orioles right-handed pitcher Albert Suarez (elbow) was placed on the 15-day injured list on Monday with right elbow discomfort, ending his season. Interim manager Tony Mansolino said the injury occurred during Suarez's start against the Blue Jays on Sunday. Suarez was scheduled for an MRI on Monday and will talk with team doctors on Tuesday. The 35-year-old, who had an emergent 2024 season, only managed to pitch 11 2/3 innings this season due to a Grade 2 right subscapularis strain. Fantasy managers should wait for more news to inform his potential 2026 fantasy outlook.

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Houston Astros manager Joe Espada said on Monday that outfielder Yordan Alvarez (ankle) will get an MRI on his left ankle on Tuesday. Alvarez sprained his ankle in the first inning of Monday's 6-3 win over the Rangers while running across home plate. This is poor timing for the Astros and fantasy managers, as both are in the middle of a potential playoff run. The 28-year-old has already missed 100 games from the beginning of May through the end of August with a hand injury, and he was batting a strong .369 since returning to the team. Fantasy managers should wait for more news, but they would be left with very little time if Alvarez were to be sidelined. Overall, he is slashing .273/.367/.430 with six home runs and 27 RBI in 199 plate appearances.

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St. Louis Cardinals first baseman Willson Contreras (biceps) exited Monday's 11-6 loss to the Reds early with right biceps tightness, per St. Louis Post-Dispatch's Derrick Goold. Contreras went 2-for-3 with a single, a double, an RBI, and a stolen base before being pinch-hit for by Nolan Gorman in the seventh inning. The 33-year-old was checked by team doctors for soreness/discomfort before the game and drew the start at first base. Fantasy managers should keep an eye out for more news before Tuesday's game. Contreras is having another productive offensive season, slashing .257/.344/.447 with 20 home runs, 80 RBI, and five stolen bases in 563 plate appearances.

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Texas Rangers shortstop Corey Seager (abdomen) did some light jogging on the field on Monday, reports Jeff Wilson of AllDLLS.com. He has been out since August 27 after being diagnosed with appendicitis and undergoing an appendectomy. Bruce Bochy stated that the 31-year-old was still pretty sore, but that soreness figures to be the only thing holding him back from a return to the lineup. Don't expect an activation within the next few days, but Seager should be able to see the field at some point to close out the season. He's had a successful campaign when he is healthy, batting .271 with a .373 on-base percentage and 21 home runs in 102 games.

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Miami Marlins third baseman Connor Norby (quadriceps) was activated from the 10-day injured list on Monday. He only needed to miss the minimum number of days with his quad strain, and he'll step back in as the team's primary third baseman. The 25-year-old was a trendy sleeper pick in deep roto leagues heading into the year, but he ultimately has not lived up to expectations. Norby is batting just .247 with a .298 on-base percentage, while hitting six home runs in 77 games. His three trips to the injured list certainly didn't help him find a groove, as he missed time with quad, wrist, and oblique injuries.

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Philadelphia Phillies second baseman Edmundo Sosa (groin) could return on Tuesday, reports Matt Gelb of The Athletic. He hasn't played since he was removed from Friday's game early with groin tightness, although it looks like he is recovering enough to avoid a trip to the injured list. The plan is to complete a full workout on Monday before returning to the lineup on Tuesday against the Dodgers. The 29-year-old has been a solid role player for Philadelphia this season, batting .270 in a platoon role. Weston Wilson and Donovan Walton have been filling in at second base in the meantime, but expect Sosa to play a significant amount while Trea Turner and Alec Bohm are injured.

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Philadelphia Phillies third baseman Alec Bohm (shoulder) made the trip with the team to take on the Dodgers in LA, reports Matt Gelb of The Athletic. They left many of their injured players at home, so this is a promising sign that he could be activated within the minimum number of days. While he won't actually be eligible to return until after the Dodgers series on Friday, he is doing full workouts with the team. It was always supposed to be a short injured list stint for the 29-year-old, who is dealing with a cyst in his left shoulder. This is his second injury of the season, as he missed a month earlier in the year due to a fractured rib.

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Houston Astros outfielder Yordan Alvarez (ankle) left Monday's contest after spraining his ankle in the bottom of the first inning, reports Chandler Rome of The Athletic. He was running home on the play and seemed to slip as he crossed the plate. He looked to be in significant pain trying to walk off the field, so this is the best-case scenario if it turns out to be only a sprain. The Astros have a recent history of downplaying potential injuries, so he's not out of the clear just yet. The 28-year-old made his long-awaited return on August 28 after missing almost four months of the season, so it would be a shame if the slugger needed yet another trip to the injured list. In 48 games this season, he is slashing .273/.367/.430 with six home runs.

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San Diego Padres left-hander Nestor Cortes (biceps) played catch from 90 feet last Thursday and felt good enough to throw off a mound on Saturday, according to MLB.com. Cortes was put on the 15-day injured list on Sept. 4 (retroactive to Sept. 4) with left-biceps tendinitis that he began experiencing following his start on Sept. 3. The 30-year-old veteran southpaw is unlikely to return to the big-league roster when he's eligible later this week, and the Friars probably don't want him anywhere near their starting rotation down the stretch as the look to cement their spot in the postseason. The Cuban hurler has not been very effective in just eight starts with the Padres and Milwaukee Brewers this year. He has a 5.47 ERA and 1.59 WHIP in SD in six starts and has allowed a whopping 13 home runs in only 34 1/3 total innings in 2025.

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