4 takeaways as Celtics lose to Hawks in Summer League, rookies show promise

The Boston Celtics fell to the Atlanta Hawks 102-90 in NBA Summer League play on Monday, July 13, 2026, in Las Vegas, dropping to a 2-1 record with two games remaining. The Celtics were without Hugo Gonzalez and Amari Williams, who were rested after a win over the Hornets the previous day. Atlanta dominated with 50% shooting from the field and 38.2% from three-point range, at one point leading by as many as 29 points.