WASHINGTON (AP) -- Kevin Garnett's 19 points led six Celtics in double figures, and Boston limited Washington to 2-for-18 shooting in the fourth quarter en route to a 99-88 victory over the Wizards on Monday night.

Boston ended a three-game losing streak and prevented Washington from compiling its first three-game winning streak since April 2008.

The Wizards led by eight points late in the third quarter, but the Celtics used a 16-4 run capped by Rasheed Wallace's 16-foot fadeaway jumper to go up 86-82 midway through the fourth.

Boston outscored Washington 25-10 in the final quarter, even though Paul Pierce sat out the period after hurting his left foot.

Pierce said he has what he thinks is a mild sprain to his left foot and will have an X-ray on it.

Pierce rolled his foot in the first half. He stayed in the game through the third quarter but sat out the fourth.

Rajon Rondo had 17 points and 12 assists for Boston. Caron Butler led Washington with 20 points and 11 rebounds.