This article was originally published on www.si.com as Cooper Flagg Thinks NBA Summer League Debut Was One of the Worst Games of His Life.

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.