Celtics  coach Doc Rivers  underwent a biopsy Sunday morning at Massachusetts General Hospital after his doctor found a spot on his throat three weeks ago. The good news for the coach is that the results came back clean.
“They found cancerous lesions,” Rivers said after the team conducted an open practice for season ticket holders at TD Garden. “They had to make sure there was nothing there, and there was nothing, so I’m good. I’m going to be around for a while it looks like.”
Rivers said that he has his throat checked every year after prompting from former Celtics coach Jim O’Brien . “I think most coaches should because we yell, use our throat a lot,” Rivers said. “That makes you more susceptible to it. I’m glad I did it now.”
The Celtics had said that Rivers had a “minor throat procedure” done to relieve pressure on his vocal chords. He was not at practice Monday, but returned to the team Tuesday night. Assistant coach Lawrence Frank  did most of the on-court coaching while Rivers watched from the sidelines.
“I like Lawrence as my megaphone,” Rivers joked.
Rivers is expected to coach the team Wednesday night when the Celtics play the Nets  in their final preseason game at the Garden.
FINAL ROSTER MOVE COMING
Rivers said the team would probably make its final roster decision after Wednesday’s game. There is only one roster spot up for grabs and the competition is mostly between Von Wafer  and Stephane Lasme. Veteran Mario West is also in the mix.
“It’s between a couple of guys,” Rivers said. “You can figure it out.”
On Wafer, Rivers said, “He’s been more aggressive offensively. He still has to buy in defensively, and into our culture. I think he’ll do that. He’s getting better.”
The Celtics also added Tiny Gallon, a second-round pick from Oklahoma who was recently waived by the Bucks to a non-guaranteed deal.
“I know nothing about him honestly,” Rivers said. “I know Danny [Ainge] is going to look at him. I think he’s doing it more for that.”
Delonte West  said he is getting better, but he won’t play Wednesday night. West will not be eligible to play in a game until Nov. 17 against Washington after he serves his 10-game NBA suspension.
Jermaine O’Neal also won’t play. He did not participate in practice Tuesday and he is battling a number of injuries.”That’s rest, that’s injury, that’s disappointing, to be honest,” Rivers said. “He has not had the preseason that we would have liked him to have so far, sometimes you can’t avoid it.”
SHEED CHECKS IN
The Celtics got a visit from Rasheed Wallace  who watched practice from the sidelines and chatted up Kendrick Perkins  while Perkins rode a stationary bike. The crowd of season ticket holders and sponsors gave him a “Sheeeeed” call for old time’s sake.