Sonny Gray pitched five scoreless innings in his return to action and the visiting Boston Red Sox completed a three-game sweep of the Detroit Tigers with a 4-0 victory on Wednesday night.

Gray (3-1) came off the injured list and gave up four hits while recording two strikeouts. Gray strained his right hamstring in a start last month against the Tigers.

Tyler Samaniego struck out three in two innings. Zack Kelly and Greg Weissert each pitched an inning to complete the shutout.

Masataka Yoshida had two hits and scored a run. Caleb Durbin supplied an RBI double.

Detroit starter Jack Flaherty (0-3) gave up four runs, two earned, in five innings while recording a season-high 10 strikeouts. Riley Greene led the offense with two hits.

Flaherty struck out the first five batters he faced. The Tigers threatened in the bottom of the inning as Greene led off with a double and Zach McKinstry and Spencer Torkelson drew two-out walks. Jace Jung, just recalled from Triple-A Toledo on Wednesday, then hit a sinking liner that right fielder Wilyer Abreu snared with a sliding grab.

Boston took the lead in the third. Marcelo Mayer reached on an infield hit and Flaherty hit Carlos Narvaez with a pitch. Durbin then smacked a double to left, scoring Mayer. One out later, Willson Contreras hit a sacrifice fly to bring in Narvaez.

Detroit had a pair of baserunners in the bottom of the inning as Matt Vierling and Greene hit singles. Dillon Dingler flied out to center, ending the threat.

The Red Sox pushed their lead to 4-0 in the fourth. Masataka Yoshida had a one-out single and Ceddanne Rafaela drew a walk. With two out, third baseman Colt Keith made an error on a Narvaez grounder, allowing both runners to score.

In the seventh, Boston loaded the bases on three walks by Drew Anderson.

Brant Hurter retired the next two batters on a strikeout and groundout to leave the runners stranded.

Kelly issued two one-out walks in the eighth, then struck out Greene and Dingler.