Eyes will be on No. 1 draft pick Cooper Flagg and his Dallas Mavericks this July as his highly anticipated professional career begins. Flagg & Co. kicked off their summer league slate with a high-profile 87-85 win over a Los Angeles Lakers squad that features Bronny James.

The Boston Celtics and Miami Heat will face off tonight in an NBA 2K26 Summer League matchup in Las Vegas, Nevada. The game will be broadcast on ESPNU at 8 p.m. ET with streaming options available through FuboTV, Sling, DirecTV and ESPN+.

By now, NBA fans should know to be wary of drawing too many definitive conclusions from Las Vegas Summer League. The sample sizes are small, the practice time is limited, and roster are often missing key pieces (like pass-first point guards) that help lineup constructions fall into place.