Las Vegas' Thomas & Mack Center was buzzing on Thursday night, when No. 1 overall pick Cooper Flagg and the Dallas Mavericks took on Bronny James and the Los Angeles Lakers.

Though the No. 1 pick struggled to make shots, Cooper Flagg had flashes of brilliance during his debut with the Mavericks on Thursday.

Cooper Flagg had a forgettable Summer League debut with the Mavericks on Thursday night but still made key plays down the stretch in a 87-85 win over Bronny James and the Los Angeles Lakers.