Jaylen Brown recorded 27 points, six rebounds and five assists and the Boston Celtics became the first NBA team to reach the 50-win mark this season with a 121-99 victory over the host Portland Trail Blazers on Monday.

Jayson Tatum added 26 points and eight assists and Sam Hauser scored a season-best 22 points off the bench for Boston.

Payton Pritchard added 11 points, eight rebounds and eight assists, Al Horford had 11 points and three blocked shots and Derrick White contributed 11 points, six rebounds and three blocked shots for the Celtics.

Deandre Ayton had 22 points and 15 rebounds for the Trail Blazers, who lost for the 10th time in their past 11 home games.

Anfernee Simons scored 17 points, Jerami Grant added 14 and Scoot Henderson had 13 points, eight assists and six rebounds for Portland.

Boston won for the 13th time in its past 15 games despite playing without Kristaps Porzingis (hamstring) and Jrue Holiday (knee).

The Celtics shot 49 percent from the field, including 15 of 40 (37.5 percent) from 3-point range.

Portland connected on 44.8 percent of its shots and was 10 of 28 (35.7 percent) from behind the arc.

Boston led 79-60 with 7:44 left in the third quarter after a 7-0 run.

The Trail Blazers answered with a 15-5 charge, and Grant's three-point play pulled Portland within 84-75 with 1:36 remaining in the third. The Celtics scored the final four points of the stanza for a 13-point lead.

Tatum and Hauser connected on back-to-back treys to boost Boston's advantage to 101-83 with 8:40 left in the contest.

Hauser later buried a trey to push the lead to 115-95 with two minutes remaining as the Celtics closed out their seventh win in the past nine meetings with the Trail Blazers.

Brown scored 17 first-half points to help the Celtics hold a 66-52 lead at the break. Ayton scored 14 in the half for Portland.

Boston made six treys in the first quarter en route to a 37-28 lead. A dunk by Luke Kornet made it 50-33 with 7:47 left in the first half.

Simons hit two 3-pointers during an 11-0 surge that allowed the Trail Blazers to move within 56-50 with 3:37 to play. The Celtics answered with a 10-2 run to make it a 14-point halftime margin.

--Field Level Media