Dallas Mavericks rookie Cooper Flagg described his NBA Summer League debut as "one of the worst games of my life," but drew praise from coaches and opposing guard Bronny James after a win over the Los Angeles Lakers.

LAS VEGAS (AP) — Cooper Flagg strolled into UNLV’s Thomas and Mack Center at 4:17 p.m. on Thursday, wearing Dallas Mavericks gear, bright white New Balance shoes, and an emotionless look on his face as he passed through security.