Dallas Mavericks rookie and No. 1 NBA Draft pick Cooper Flagg contributed 10 points, six rebounds and four assists in 32 minutes in his Las Vegas Summer League debut Thursday as the Mavericks edged the Los Angeles Lakers 87-85.

The opening day of the NBA Las Vegas Summer League provided fireworks and the debut of No. 1 overall pick Cooper Flagg, who struggled to find his shot in a dramatic win over the L

Cooper Flagg went 5-21 in his Summer League debut, but Jason McIntyre says it’s time to relax and let him develop.