WATFORD, England (AP) - Minnesota Vikings quarterback Christian Ponder is questionable for Sunday's NFL game in London against the Pittsburgh Steelers because of a rib injury.
Vikings coach Leslie Frazier says Wednesday's practice will ``be a big signal in what direction we'll have to go.''
Backup quarterback Matt Cassell is ready to step in if Ponder is ruled out.
Ponder says ``we're going to push it to the limit and see what we can do, in a smart way. But I'm doing everything I can to play.''
Ponder, who has thrown five interceptions and two touchdowns for a 65.9 passing rating, says he picked up the injury early in Sunday's 31-27 loss to the Cleveland Browns, which dropped Minnesota to 0-3.
The Steelers are also 0-3.
AP NFL website: http://www.pro32.ap.org