"Adversity visits the strong, but stays with the weak," Sanders tweeted Monday. "I'll be alright!"
Sanders had 118 yards on nine carries before he injured his knee in the third quarter of Sunday's loss. Ertz sustained his ankle injury in the fourth quarter.
The Eagles will host the New York Giants at 8:20 p.m. EDT on Thursday Night Football in Philadelphia. They will then host the Cowboys in another NFC East matchup in Week 8 before they have a Week 9 bye.
Dallas Goedert, the Eagles No. 2 tight end, is eligible to come off injured reserve this week after he dealt with an ankle injury. Goedert could return to the lineup, but it could be a longshot for him to get ready due to a shorter week of practice than normal.
The Eagles also have Richard Rodgers, Hakeem Butler and Jason Croom at tight end.
Running back Boston Scott had four touches for nine yards in the fourth quarter on Sunday after Sanders' departure. Scott will likely share the workload with fellow running backs Corey Clement and Jason Huntley as Sanders recovers from his knee injury.
"Boston, Corey, Huntley are the guys that would be in the running back by committee," Eagles coach Doug Pederson told reporters Monday. "That would be our next move. ... We know Boston has played and Corey has played.
"Huntley is the only one who has been limited from the standpoint of playing, but we have confidence in all three of those guys."
Sanders has 525 yards from scrimmage and three touchdowns on 83 touches this season. Scott has 115 yards from scrimmage. Clement has 32 yards from scrimmage. Eagles quarterback Carson Wentz is the team's second-leading rusher, with 171 yards and four touchdowns on the ground.
The Eagles, who have dealt with myriad injuries to their offensive players, rank No. 22 in points scored and No. 27 in yards.