MEMPHIS, Tenn. — Isaiah Thomas scored a career-high 44 points, including 36 after halftime to lead the Boston Celtics past the Memphis Grizzlies 112-109 in overtime Tuesday night.

After the Grizzlies took a 106-105 lead on a rebound basket by Tony Allen with 1:10 left in the extra period, the Celtics scored the next five points.

Al Horford had 17 points and 14 rebounds for the Celtics, who overcame a 17-point deficit in the second half to win their third straight. Avery Bradley added 16 points.

Thomas also matched his career best for 3-pointers, going 7 of 10.

Marc Gasol and Troy Daniels led Memphis with 24 points apiece. Mike Conley had 19 points and eight assists for the Grizzlies, who lost their third in a row – all at home.