The Utah Jazz admitted that they were looking forward to playing the top team in the NBA.

And no one more than Deron Williams.

The Jazz guard scored 32 points—13 of them in the fourth quarter and seven during a 10-0 run when Utah turned back Boston’s last chance to win 110-92 on Friday night and snap the Celtics’ 10-game winning streak.

“I tried to take over a little bit,” said Williams, who was icing his head afterward. “It was time for me to assert myself a little more.”

Carlos Boozer had 17 points and 12 rebounds for his 44th double-double of the season, and Mehmet Okur had 12 points and nine rebounds for Utah. Williams went 17-of-18 from the line and added eight assists and five rebounds as the Jazz handed Boston its worst loss of the season.

“He just kept driving and driving and driving and kept getting fouled and fouled and fouled. He played terrific,” Boozer said. “These are the games you circle on your calendar. It was a big win for us on the road.”