Titans quarterback Vince Young was replaced by Kerry Collins in Sunday's win over the Lions after suffering a hamstring injury. "We will just see how he is throughout the week," coach Jeff Fisher said. "I kept him warm and on the bike, and he would have been able to hand off and so that gives you kind of some idea. I am not going to comment any further than that." Young strained his right hamstring on a 44-yard run in the second quarter. "I just kind of tweaked my hamstring a little bit so I just got off of it and told coach, 'I'm just going to sit it out. I didn't want to get too bad with it and injure it worse," Young said after Tennessee's 47-7 rout of Detroit.