Cooper Flagg's 29 points and late block drop the Heat to 0-4 in a 113-109 Mavericks win

Cooper Flagg scored 29 points and blocked Andrew Wiggins' go-ahead 3-point try with 31 seconds left as the Dallas Mavericks beat the Miami Heat 113-109 on Monday night, leaving Miami winless through four games.

Flagg finished with 11 assists, six rebounds, five steals and three blocks in 40 minutes, scoring 12 of his points in the fourth quarter. The Associated Press noted that before Monday, the youngest player on record with that many points, assists, rebounds, steals and blocks in one game was a 22-year-old Chris Webber in 1995. Flagg is 19.

The block was the play of the night. Dallas led by two when Wiggins rose for a 3, and Flagg got a hand on it to keep the Mavericks in front.

P.J. Washington added 20 points and nine rebounds. Kyrie Irving scored 18 with six assists, Walter Clayton Jr. had 15 on 6-of-7 shooting off the bench, and Max Christie made three 3s for 11. Dallas made 13 of 14 free throws.

That line ended up mattering. Miami went 14 of 25 at the line, missing 11.

Giannis Antetokounmpo had 29 points and 11 assists for his first triple-double since joining the Heat. Davion Mitchell scored 21, and Wiggins and Pelle Larsson each had 12. Bam Adebayo scored eight on 3-of-10 shooting.

Miami had its moments. Down 19-11 midway through the first quarter, the Heat outscored Dallas 37-17 over the next 12 minutes to build a 12-point lead, their biggest of the season. Dallas led 53-52 at halftime, Miami went up 10 early in the third and took an 84-83 lead into the fourth, and the Mavericks retook the lead midway through the final quarter and held it.

According to the AP, this is the fifth time the Heat have started 0-4 and the first since 2008-09. It was also the first meeting between first-year Dallas coach Dusty May and Erik Spoelstra. "He's a heck of a coach," Spoelstra said of May. "There's no doubt about it."

Dallas is 2-2 and hosts unbeaten Oklahoma City on Wednesday. Miami visits Atlanta the same night, still looking for its first win.