Ainge, who was out scouting college tournaments in Las Vegas when the NCAA and NBA games were stopped, hasn’t been tested for the coronavirus. Actually, around the Celtics, just the players and a few support people have. But only Marcus Smart has tested positive, and all others are doing well and are practicing proper social distancing. “I feel great,” said Ainge, whose medical history includes two mild heart attacks — one in 2009 and another during last year’s playoffs. “I feel fine. There’s been no symptoms at all, so that’s good. And I haven’t had contact with anybody from our team since, like, March 1st or 2nd.”