Third quarterback Nate Sudfeld was the only healthy Eagles inactive for Sunday night’s game against the visiting Dallas Cowboys. As was reported earlier in the day, right tackle Lane Johnson was inactive with knee and ankle injuries; as recently as Friday, it seemed Johnson would try to play.

Jordan Mailata started in Johnson’s place, after playing the last four games at left tackle, in place of Jason Peters, who has recovered from his toe injury. Mailata struggled a bit early against Cowboys defensive end DeMarcus Lawrence, giving up a sack on the Eagles' second play of the game.

Defensive tackle Raequan Williams was active for his NFL debut, after having been activated from the practice squad Saturday. Williams wore No. 61.

Also inactive Sunday were Alshon Jeffery (calf), Miles Sanders (knee), Cre’Von LeBlanc (quad), Craig James (hamstring), and Jack Driscoll (ankle).

Dallas deactivated quarterback Andy Dalton, who was concussed last week and did not make the trip to Philadelphia.

» READ MORE: Eagles bumble and stumble before finding the right direction to beat Cowboys, 23-9, thanks to Rodney McLeod

Slay shadows Gallup

The hype surrounding the matchup between Darius Slay and Amari Cooper was for naught, as the Eagles' No. 1 corner instead shadowed Cowboys receiver Michael Gallup for much of the first half instead. Slay later left the game with an injury.

When the Eagles traded for Slay over the offseason, much was made about his performance against Cooper while playing for the Detroit Lions. Slay held Cooper to just three catches for 38 yards on eight targets.

Cooper went into Sunday night’s game as the Cowboys' leading receiver with 583 yards on the season. Gallup had 371 yards before the game.

Cooper finished the game with one catch for 5 yards. Gallup had seven catches for 61 yards.

» READ MORE: Five takeaways from the Eagles' 23-9 win over the Cowboys