A decision on whether or not Young will watch Sunday's game from the sideline likely won't be made until just before kickoff.
Young didn't practice as the Titans (4-2) went through their first real workout since Monday night's 30-3 victory at Jacksonville. That's where Young had his left leg twisted underneath him after he recovered a fumbled snap.
Young said Thursday that his knee and ankle feel about the same. His leg is feeling better every day, thanks to constant treatment, but Young doesn't know yet if he will make his 17th consecutive start.
"It's basically day to day still and making that decision on Sunday," Young said. "So right now, I mean just continue to keep treating it and pretty much do some things tomorrow to see how it feels."
"Again, it's been a day-to-day thing," Fisher said. "We want him to play, he wants to play, but he is unable to practice right now because of his injuries. So we'll see how he is tomorrow. Tomorrow is Friday."
Young said he is thankful his injuries weren't as bad as they looked.
"To walk away from it with nothing torn, that's a real good thing. All respect to God on that," he said.
Collins banged the middle finger of his throwing hand, but he is able to practice.
Young is 30-15 overall as a starter and 12-2 against NFC teams as a starter, and he has three touchdown passes with a 100.8 rating in two games against NFC opponents this season. He has been accurate this season, completing 61.4 percent of his passes for seven TDs with two interceptions and a career-best 98.8 rating.
Young said he's paying close attention to what Collins sees in practice and the game plan. But Young said he still needs the physical practice as well. How much he can run will be a key Sunday when he tells Fisher how his leg feels, and the Titans decide whether he will start or Collins will go against the Eagles (4-2), who have a sack in 25 consecutive games.
"I've been delivering the ball in the pocket pretty good," Young said. "... Knowing the type of aggressiveness the Eagles have, sometimes you're going to have to take the ball and make some moves downfield in order to keep the chains moving."
Notes: Young was one of four Titans who didn't practice Thursday as they work to recover in a short week. DT Tony Brown (right knee) and Jason Jones (shoulder) and TE Bo Scaife (groin) also watched. Fisher said Brown, Jones and Scaife should be able to practice Friday.
Copyright 2010 by The Associated Press