INDIANAPOLIS -- Indianapolis Colts wide receiver Marvin Harrison has been told his knee pain is likely to persist through the remainder of the season and perhaps for the rest of his career, a source said Friday.
Harrison is a game-time decision for Sunday's showdown against the Patriots.
Specialists who have examined the receiver's knee do not view surgery as a viable option because there is no guarantee of success and would require six months of rehabilitation.
Colts coach Tony Dungy said Harrison has been medically cleared to play Sunday against New England. Harrison is urging the coaches to let him do just that.
But Dungy wants to make the best decision for the whole season, not just one midseason game.
The Colts issued a statement Friday regarding Harrison's status.
"The Indianapolis Colts have received no medical opinion" that verifies chronic trouble in Harrison's knee, the statement said.
"The club will have no further comment on this matter," the release said.
Harrison, in his 12th NFL season, did not play last week against Carolina. He also missed Indianapolis' Week 5 game against Tampa Bay.
He has 20 catches for 247 yards this season for the Colts.
Ed Werder covers the NFL for ESPN