DALLAS — Victor Wembanyama had 40 points and 15 rebounds in a highlight-reel return, helping the San Antonio Spurs spoil No. 1 overall pick Cooper Flagg’s debut in a 125-92 rout of the Dallas Mavericks on Wednesday night.

Flagg, the second-youngest player to start in his NBA debut by two days behind LeBron James, didn’t score until the first possession of the second half, finishing with 10 points and 10 rebounds.

The 18-year-old from Duke had more trouble getting into the flow than the second overall choice. Dylan Harper came off the San Antonio bench midway through the first quarter, started the run that put the Spurs in control and scored 15 points. Reigning Rookie of the Year Stephon Castle scored 22 points for the Spurs.

Anthony Davis had 22 points and 13 rebounds as the Mavericks a

See Full Page