Houston led by as many as 13 in the first quarter, and was up by eight before Boston used a 13-3 run to take a 34-32 lead about 6 minutes before halftime. Jason Terry tied the game with a 3-pointer in that run, and Rondo gave Boston its first lead of the game with a layup.
The Celtics had built their lead to seven points before Houston ended the half with a 9-5 spurt to get within 45-43 at halftime.
NOTES: The Celtics are in the middle of playing three straight games in Texas. They wrap up the Texas part of their road trip against San Antonio on Saturday night before ending their trip at Chicago on Tuesday. ... Houston begins a two-game road trip to Toronto and New York on Sunday. ... Lee, who played for Houston last season, finished with eight points and three rebounds.