Josh Mccown

Wentz, 27, left the field and was questionable to return after taking a blow to the back of his helmet from Seahawks defensive end Jadeveon Clowney in the first quarter of Sunday's NFL playoff game.

Veteran back-up Josh McCown replaced Wentz under center before the latter was officially ruled out by the Eagles after half-time in Philadelphia.

Wentz sat out Philadelphia's playoff run in 2017, his second season in the league, after tearing his anterior cruciate ligament (ACL) during the regular season.

In his absence, Nick Foles steered the franchise to their first Super Bowl triumph, as they beat the New England Patriots 41-33 in Minnesota.

Prior to the postseason showdown against the Seahawks, Wentz completed 388 passes for 4,039 yards and 27 touchdowns in 16 appearances.

Wentz was hurt while running the ball during the first quarter of Sunday's NFL playoff game, having taken a blow to the back of his helmet from Seahawks defensive end Jadeveon Clowney.

McCown came in for Philadelphia's next possession, with the Eagles announcing on Twitter that Wentz – making his postseason debut – was being evaluated, listing him as "questionable to return".

The 40-year-old back-up is with his ninth team in an NFL career that started back in 2002. He had announced his retirement after spending the previous two seasons with the New York Jets, only to be tempted back by the Eagles.

Wentz sat out Philadelphia's playoff run in 2017, his second season in the league, after tearing his anterior cruciate ligament (ACL) during the regular season.

In his absence, Nick Foles steered the franchise to their first Super Bowl triumph, as they beat the New England Patriots 41-33 in Minnesota.