When I didn't see Carsen Edwards on the NBA Summer League First team, I was sure he was going to be on the 2nd, but nope. No Celtics on either team despite their rather dominant play. Brandon Clarke was named Summer League MVP. You'll recall the Celtics traded away pick #20 to the 76ers on draft night. The Grizzlies then traded up to #21 to snag Clarke right before the Celtics picked at #22. The C's would then go on to pick Grant Williams.
It's unknown whether the Celtics were eyeing Clarke at #22, which forced the Grizzlies to trade up.