The Dallas Cowboys ruled out All-Pro cornerback Trevon Diggs for Sunday’s road game against the Carolina Panthers, with multiple outlets reporting Saturday that he is expected to have season-ending knee surgery.Diggs, 26, was questionable for the game after returning to action last Monday in a 27-20 home loss to the Cincinnati Bengals. He had missed the previous two games because of groin and knee issues in what has been an injury-marred season.He has started all 11 games he has played this season and has 42 tackles, two interceptions and 11 passes defensed.Diggs tore the ACL in his left knee during a practice before Week 3 last season and played in only two games.The Cowboys selected him in the second round of the 2020 NFL Draft out of Alabama. He has 215 tackles, one sack, 63 passes defensed and 20 interceptions — including two returned for touchdowns in 58 regular-season games (57 starts).