Max Strus connected on a 59-foot heave at the buzzer, lifting the Cleveland Cavaliers to a wild 121-119 win over the Dallas Mavericks on Tuesday.

Strus made five 3-pointers in the final 3:42 of the game and capped a back-and-forth ending, giving the Cavs their 20th win in their last 24 games.

Dallas’ PJ Washington made a contested layup with 2.6 seconds remaining to put the Mavs up 119-118.

Without any timeouts to advance the ball, Strus inbounded to Evan Mobley, who quickly returned the ball. Strus took one dribble before launching from behind the half-court line and swishing the game-winning bucket.

Strus finished with 21 points. Donovan Mitchell also made seven 3’s and led the way for the Cavs with 31 points.

With the win, Cleveland (38-19) remained alone in second place in the Eastern Conference.

The Mavericks, who lead by 10 with under four minutes remaining, squandered a signature performance from Luka Dončić, who finished with 45 points, nine rebounds and 14 assists.

Celtics extend season-best winning streak

Jaylen Brown scored 31 points, Jayson Tatum flirted with a triple-double and the Boston Celtics weathered a rare cold shooting night, beating the Philadelphia 76ers 117-99 for their ninth straight win.

The Celtics, who lead the NBA in both 3-point makes and attempts this season, shot just 5 of 22 from beyond the arc, both season lows.

Boston compensated for their cold shooting by attacking the rim and shooting 34 of 37 from the free throw line. Tatum – who finished with 29 points, 11 rebounds and eight assists – was 10 of 11 from the line, while Kristaps Porzingis made all 12 of his free throws.

The Celtics (46-12) improved to 25-0 at home against Eastern Conference opponents.

Tyrese Maxey was the high-point man for Philadelphia with 32, but the rest of the 76ers’ starters combined for just 22 points.

SGA powers Thunder to 6th straight win

Shai Gilgeous-Alexander continued to make his case for league MVP, Jalen Williams scored an efficient 24 points and the Oklahoma City Thunder beat the Houston Rockets 112-95 to win their sixth straight game.

Gilgeous-Alexander finished with 31 points and has scored at least 30 in every game during the Thunder’s winning streak.

The win kept Oklahoma City (41-17) in a tie with the Minnesota Timberwolves for the best record in the Western Conference.

Alperen Sengun had a team-high 23 points and 11 rebounds for the Rockets, who are just 6-14 in their last 20 games.