WALTHAM — Miami has won 20 straight games, but Paul Pierce said he doesn’t care.
“I hope they lose every game the rest of the season,” he said Friday before practice here.
The Celtics especially hope the Heat lose when these teams play Monday at TD Garden.
Miami has two games between now and Monday (at Milwaukee and at Toronto), and if it wins both it will have won 22 straight, tying the 2007-08 Houston Rockets for the second-longest winning streak in NBA history.
The Celtics snapped Houston’s 22-game winning streak that season on March 18, five years ago to the day for this Celtics-Heat matchup that could have similar stakes.
The NBA’s longest winning streak was by the 1971-72 Lakers, who won 33 in a row.
Pierce did admit that it’s hard to escape the noise around the streak and that it was impressive. His coach also chimed in with similar sentiments.
“”It’s impressive, it’s really impressive,” Doc Rivers said. “The year after we won it, I think we won  in a row, right before Kevin went down [with a season-ending knee injury], and it’s hard to do — for a lot of reasons.
“But it’s harder to do for a defending champ, because every night is the other team’s biggest game. And the fact that they are doing it under those circumstances, is pretty impressive.”