(Photo credit: Rob Gray-Imagn Images)

Keyonte George scored 37 points -- his second straight 30-plus-point game -- and dished out six assists while leading the Utah Jazz to a 140-133 overtime victory against the Dallas Mavericks on Monday in Salt Lake City.

Utah overcame a historic performance from Dallas' Cooper Flagg, who became the first 18-year-old to have a 40-point game in NBA history. Flagg produced 42 points while also finishing with six assists and seven rebounds.

Lauri Markkanen added 33 points, 16 rebounds, five assists and four steals for the Jazz, teaming with George to score nine of Utah's 11 overtime points. Kyle Filipowski chipped in 25 points and nine rebounds as the Jazz won for the fourth time in six games.

P.J. Washington chipped in 25 points and 13 rebounds for the Mavericks, who had won five of their previous six games. Naji Marshall had 15 points, and Ryan Nembhard added 14 points and 11 assists.

Nuggets 128, Rockets 125 (OT)

Jamal Murray scored six of his 35 points in overtime, Nikola Jokic produced 39 points, 15 rebounds and 10 assists before fouling out, and host Denver beat Houston.

Tim Hardaway Jr. and Cameron Johnson scored 13 apiece and Spencer Jones contributed 11, including a 3-pointer in overtime to help Denver end its four-game home losing streak. The Nuggets, who have won five in a row overall, saw Peyton Watson leave for good in the first quarter due to a right trunk injury.

Alperen Sengun finished with 33 points, 10 rebounds and 10 assists, Kevin Durant added 25 points and five blocks, Amen Thompson had 14 points and 12 rebounds, and Jabari Smith Jr. logged 16 points and 10 boards for Houston.

Grizzlies 121, Clippers 103

Jaren Jackson Jr. scored a season-high 31 points, Cam Spencer added a career-high 27 points and Memphis finished off a victory over Los Angeles at Inglewood, Calif.

Jaylen Wells added 16 points for the Grizzlies, who opened a 90-76 lead through three quarters and cruised to their third victory over the Clippers since Nov. 28. Memphis star Ja Morant was held to 12 points over 21 minutes in his second game since returning from a calf injury. Morant shot 4 of 12 from the floor and played just 21 minutes as the team restricts his action.

Kawhi Leonard scored 21 points and Kris Dunn added 17 for the Clippers, who lost their eighth consecutive home game. James Harden was held to 13 points as Los Angeles fell to 3-12 over a stretch in which it has played 12 of the 15 games on the road.

Pistons 112, Celtics 105

Cade Cunningham collected 32 points and 10 assists to help visiting Detroit extend its winning streak to four games by beating Boston.

Cunningham was 11 of 21 from the floor, which included 6 of 10 from 3-point territory. Caris LeVert and Tobias Harris each added 13 points for the Pistons.

Jaylen Brown had 34 points, eight rebounds and seven assists for Boston, but missed seven of his 14 free-throw attempts. Derrick White tossed in 31 for the Celtics, who have lost two in a row.

Raptors 106, Heat 96

Brandon Ingram scored 28 points as Toronto snapped a four-game skid with a win over host Miami.

Ingram buried 5-of-7 3-pointers, while Scottie Barnes compiled 17 points, 10 rebounds, six assists and three blocks. Immanuel Quickley added 15 points as the Raptors dominated the fourth quarter 32-19.

Bam Adebayo and Norman Powell posted 20 points each for Miami, which suffered its fifth straight defeat. Adebayo also hauled in 10 boards and Kel'el Ware had 13 rebounds in 19 minutes for the Heat, who lost Tyler Herro before the game with a right big toe contusion, then suffered another blow when Nikola Jovic suffered a right elbow injury in the first quarter.

--Field Level Media