Couch threw just five passes during team and 7-on-7 sessions. Coach Mike Sherman said afterward that the light day was a chance to get the other quarterback contenders some action. Offensive coordinator Tom Rossley, however, said Couch's troublesome right (throwing) arm was sore after a busy Monday in which he took nearly one-third of the snaps.
After a hectic start to training camp in hopes of getting him up to speed quickly in the difficult West Coast offense — a stretch capped by a woeful performance against the New Orleans Saints in the second preseason game — Couch has missed or failed to complete eight of the last 10 practices.
Meanwhile, the tentative plan for Friday's preseason finale at Tennessee is for starter Brett Favre to play the first half, Couch to play the third quarter and Scott McBrien and Craig Nall, in that order, to finish up. Doug Pederson, the presumed No. 2 quarterback, will get the night off.
Also on the injury front, Ahman Green's availability for Friday's game will depend on the star running back making a quick recovery.
"If we were playing today, I wouldn't play him. We'll see how he feels (Wednesday) and the next day and then the day of the game," said Sherman, who described Green as questionable to play.
A second starter was unable to practice Tuesday as cornerback Michael Hawthorne remained out with a back strain suffered Friday at Jacksonville. With Hawthorne out of action, first-round pick Ahmad Carroll has been taking the first-team reps.
Hawthorne's injury and less-than-stellar play have opened the door for Carroll to be the starter in the Sept. 13 season opener at Carolina. A clutching-and-grabbing Carroll had a nightmarish preseason game against New Orleans but bounced back with a solid game against Jacksonville. Another big game against a talented Titans offense could give the coaching staff reason to make the bold switch.
Also out Tuesday were safety Bhawoh Jue (hamstring), linebacker Torrance Marshall (hamstring), defensive end Chukie Nwokorie (hamstring), defensive tackles Larry Smith (quadriceps) and Donnell Washington (arch), cornerback Chris Watson (hamstring) and offensive lineman Atlas Herrion (knee).
Tight end David Martin (knee) was back after missing Monday's workout.