Eight-time Pro Bowl receiver Marvin Harrison returned to practice with the Indianapolis Colts on Thursday after missing 10 games. Harrison took part in a full practice Thursday and may be available for limited work against Tennessee on Sunday night. Harrison has not played since Oct. 22 because of a left knee injury. The lingering injury that he suffered against Denver on Sept. 30 has forced Harrison to miss 10 games this season, the last nine in a row. It has been unclear whether Harrison would play again this season. "We would like for Marvin to be able to go and get some playing time in. That's our hope. We'll see if it materializes," Coach Tony Dungy said earlier this week. Whether Harrison plays Sunday may dictate how many snaps Super Bowl MVP Peyton Manning gets. On Monday, Dungy said if Harrison played this week he might keep Manning in the game longer to work on their timing.