BOSTON -- Mike Conley had 23 points and nine assists to lead the Memphis Grizzlies to a 93-83 victory over the Celtics on Wednesday night and send Boston to its fourth consecutive loss.
Rudy Gay scored 19 points and ex-Celtic Tony Allen had a season-high 15 points for Memphis.
Paul Pierce scored 17 for Boston, but he had just one basket in the third quarter and none in the fourth while missing seven of his last eight shots.
Rajon Rondo had 11 points and 10 assists for the Celtics, who trailed by 18 after the opening basket of the fourth quarter but closed the gap to 83-78 with under 5 minutes to play on back-to-back 3-pointers from Jason Terry.
Boston began fouling and the Grizzlies made their shots, hitting 8 of 11 from the line down the stretch.
Memphis led by nine at the half and took a 75-59 lead after three quarters, then Marreese Speights hit a pair of baskets at the beginning of the fourth to give the Grizzlies a 79-61 lead. But Kevin Garnett scored eight points during a 17-4 run, and Boston made it 83-78 on Terry's 3-pointers 46 seconds apart.
It was 85-78 with under 3 minutes to play when Garnett missed a pair of free throws and then committed a foul at the other end. The Celtics big man finished with 12 points and seven rebounds.