Eleven Indianapolis Colts' players, including eight-time Pro Bowl receiver Marvin Harrison, missed practice Wednesday. Harrison has not played since Oct. 22 because of a left knee injury and may miss his 10th consecutive game Sunday. Coach Tony Dungy has expressed hope Harrison would return and remains optimistic that Harrison will be available for the playoffs. But the lingering knee injury has forced Harrison to miss 10 games this season, including the last nine, and generated plenty of questions whether he will play again this season. "I'm not confused at all," Dungy said before practice. "When they say he can come back and have no further risk of injury, he'll be back. With the playoffs and more on the line, he might be able to go with the same injury that has kept him out. So I don't think it's confusing at all." Whether Harrison plays Sunday against Tennessee could dictate how many snaps Super Bowl MVP Peyton Manning gets.