Boston Celtics at Toronto Raptors

Grant Williams has career-high 25, Celtics' streak reaches 9

Already without Tatum, Boston’s injury woes worsened when guard Marcus Smart hurt his right ankle in the final minute of the first half and had to be helped to the locker room. He did not return.

Center Robert Williams stayed in the game after Brown collided with his left knee in the opening quarter. At halftime, Williams was ruled out for the second half because of a hyperextended knee.

“It says a lot about our team,” Boston coach Joe Mazzulla said of the short-handed victory. “In the beginning of the game, you could obviously feel that we just didn’t have the juice. We just kept playing. We never wavered, we made great plays. Guys did a great job managing the game.”

Williams had left knee surgery last March but returned in the playoffs.

Mazzulla said Williams’ latest injury was “nothing serious,” adding that X-rays on Smart’s ankle revealed no structural damage.

Malcolm Brogdon scored 23 points and Payton Pritchard scored all of his 12 in the fourth quarter. The Celtics are unbeaten since a Jan. 3 defeat at Oklahoma City.

“To win in the NBA is hard enough, to win on the road down a bunch of guys is hard to do,” Brown said. “You don’t want to take it for granted, but we definitely have enough on this team, enough in this locker room, to win games whoever is on the floor.”

Al Horford scored five points and shot 2 for 10 but had a rebound, a blocked shot and a steal in the final 20 seconds of the fourth quarter.

“The box score doesn’t tell the story about what he does for us,” Mazzulla said. “When he takes it to another level defensively, we’re a different team.”

Grant Williams shot 7 for 13 and made four of six from 3-point range. He went 7 for 8 at the line.

“He was great tonight, man,” Mazzulla said. “He was the trigger for us.”

Pascal Siakam had 29 points and 10 assists, Gary Trent Jr. scored 22 points and Precious Achiuwa had 17 points and 11 rebounds in his first start of the season, but Toronto lost its third straight.

A potential NBA MVP candidate, Tatum sat because of a sore left wrist. He’s averaging 31.2 points, the third-highest total in the league, and a career-high 8.5 rebounds.

Tatum scored 51 points in Monday’s win over Charlotte, then had 34 points and a career-high 19 rebounds in Thursday’s overtime victory against Golden State, playing 48 of 53 minutes.

The Raptors were without guard Fred VanVleet, who was scratched shortly before tip-off because of soreness in his right ribs. Coach Nick Nurse said VanVleet is questionable for Sunday’s home game against the Knicks.

Toronto’s O.G. Anunoby left in the third quarter because of a sore right ankle. Anunoby was initially expected to return but did not play again. Anunoby scored 12 points before departing.

The Raptors attempted a season-low seven free throws against the Celtics, making five.

“We just didn’t get anything at the free throw line tonight,” Nurse said.

Trailing 85-81 through three quarters, the Celtics reclaimed the lead with a 9-0 run to begin the final quarter as Brown, Williams and Pritchard all made 3-pointers.

Trent missed a layup with 21 seconds left that would have tied it at 106. Toronto had one final chance after Boston was called for an offensive foul, but Horford forced a steal and Siakam turned it over at midcourt.

TIP-INS

Celtics: Derrick White started in Tatum’s place. … Brogdon and Luke Kornet started the second half. … Boston has won 13 of 15.

Raptors: Siakam finished with nine rebounds. … Barnes had 10 points but didn’t score in the second half.

SEE YOU LATER!

The first-place and last-place teams in the Atlantic Division, the Celtics and Raptors don’t meet again until a two-game set in Boston, April 5 and 7. The regular season concludes April 9.

UP NEXT

Celtics: Host Orlando on Monday.

Raptors: Host New York on Sunday.

Regular Season Series

BOS leads series 2-0