The Boston Celtics will wrap up their Summer League schedule with a tough test on Sunday in Las Vegas. The NBA announced that Boston will take on the undefeated Hawks (4-0) in their final game of the summer at Thomas and Mack Center at 6 p.m. ET on Sunday. The game will be broadcast on ESPNU and NBC Sports Boston.

The most anticipated on-court event on the summer basketball calendar begins Thursday as the Las Vegas Summer League gets started with a seven-game slate. The headlining matchup of the multi-week event from Sin City will feature No.