Foles played for Rams when they were still based in St. Louis in 2015

Philadelphia quarterback Carson Wentz will not play Sunday night against the Los Angeles Rams because of a back injury, the Eagles confirmed Saturday.

Super Bowl MVP Nick Foles will make his third start of the season in place of Wentz, who had been listed as doubtful after an exam earlier this week revealed a stress fracture. Coach Doug Pederson said the injury could take up to three months to heal.

Foles, who started the Eagles' first two games as Wentz completed his rehabilitation from a knee injury, has completed 54 of 82 passes for 451 yards with one touchdown and one interception this season.

Foles played for the Rams when they were still based in St. Louis in 2015, posting a 4-7 record with 2,052 passing yards, seven TDs and 10 picks.

Wentz likely will finish this season with a 5-6 record. He has completed a career-high 69.6 per cent of his passes for 3,074 yards with 21 touchdowns and seven interceptions.

Philadelphia (6-7) still has a slim chance at a wild-card playoff berth heading into the prime-time contest at Los Angeles (11-2).

--Field Level Media