Boston cut a 13-point, third-quarter deficit to three points in the fourth, and trailed just 93-89 with 5:25 left. But Williams led the Jazz on a 10-0 run while the Celtics missed a pair of 3-pointers, committed a pair of charging fouls and threw in a flagrant foul by Kendrick Perkins to fall to their biggest loss of the season.
Williams went 17-of-18 from the line, and hit his only 3-point attempt. Boozer had his 44th double-double of the season, and Mehmet Okur had 12 points and nine rebounds for the Jazz.
Kevin Garnett had 15 points, four blocks and six assists for the Celtics, who had a chance to clinch the Atlantic Division. Instead, they needed another loss by Toronto to earn a top seed in the NBA playoffs.
Boston played three-quarters of the game without Ray Allen, who jammed his left ankle and did not return.
The Celtics went four games without trailing in a game before Seattle scored the first basket on Wednesday night. But the Jazz opened a 12-point lead in the first quarter on Friday night and made it 14 in the second.
Utah held the lead even as Boston cut it to five points, 79-74, at the end of three.
Notes: The Celtics wore green uniforms with gold trim instead of their traditional home whites on Friday because they're on the road Monday for St. Patrick's Day. ... After the game, there was a concert by Grammy-nominated singer Natasha Bedingfield. ... Jazz coach Jerry Sloan was called for a technical foul for arguing with the referee with 4:18 left in the third. ... Tony Allen had four breakaways in the first few minutes of the second half; twice he had to pass the ball back out to avoid a blocked shot, once he converted a layup and on the last he made an acrobatic dunk. ... Boston's previous biggest loss was 95-83 on Jan. 9. ...Although the Jazz are 28-3 at home
- winning 18 in a row - they are just 16-20 on the road.
