In a move that has sent ripples of excitement through the NBA fanbase, the Golden State Warriors have made a surprising addition to their 2025 NBA Summer League roster, signing Isaiah Mobley, the brother of Cleveland Cavaliers star Evan Mobley. This unexpected acquisition, announced subtly amidst the flurry of offseason activities, has caught the attention of fans and analysts alike, sparking intrigue about the Warriors’ strategy for the upcoming Summer League.
Isaiah Mobley, a 6’8” forward, appeared in one game for the Philadelphia 76ers during the 2024-25 NBA season, where he showcased his versatility with six points, four rebounds, five assists, one steal, and one block, despite shooting 28.6% from the field and 33.3% from three-point range. Drafted 49th overall in the 2022 NBA Draft out of USC, Mobley has spent parts of three seasons with the 76ers and Cavaliers, accumulating career averages of 2.6 points and 1.5 rebounds per game while shooting 40.7% from the field in 23 NBA games. His experience in the G League has been particularly notable, where he delivered standout performances, including a season-high scoring and rebounding night that led the Delaware Blue Coats to a victory over the Nets in December 2024.
Isaiah Mobley, who is playing summer league with the Warriors, says he has been scrimmaging with Klay Thompson for the last 3 weeks
They’re both represented by the same agency
— Dalton Johnson (@DaltonJ_Johnson) June 30, 2025
The Warriors’ decision to sign Isaiah Mobley for the 2025 NBA Summer League, as reported by Dalton Johnson of NBC Sports Bay Area on June 30, 2025, adds a fascinating layer to their roster. What makes this move even more intriguing is the familial connection: Isaiah is the older brother of Evan Mobley, a rising star and cornerstone of the Cleveland Cavaliers. The Warriors’ Summer League squad, which will tip off against Bronny James and the Los Angeles Lakers on Saturday, now boasts a player with a recognizable name and a compelling backstory.
Adding to the buzz, Isaiah Mobley revealed he has been scrimmaging with none other than Klay Thompson, a Warriors legend, for the past three weeks, as both players share the same agency. This connection hints at the Warriors’ knack for building chemistry and leveraging relationships, even in the Summer League. Fans are shocked not only by the signing but also by the potential for Isaiah to carve out his own legacy in the NBA, following in the footsteps of his talented younger brother.
Big time double-doubles from Isaiah Mobley and Darius Bazley led the @blue_coats to victory over the Nets! 💪
This was a season-high scoring and rebounding night for Mobley. For Bazley, it was his third straight game of 20+ PTS and 10+ REB. pic.twitter.com/3ToYSDiz5q
— NBA G League (@nbagleague) December 7, 2024
The Warriors’ Summer League roster is already stacked with promising talent, including second-round picks Alex Toohey and Will Richard, as well as undrafted free agents like Coleman Hawkins and Chance McMillian. However, Mobley’s addition brings a unique narrative—a “family piece” that ties the Warriors to one of the league’s most promising young stars. His G League pedigree and flashes of all-around skill make him a player to watch as the Warriors aim to evaluate talent and build depth for the upcoming season.
As the Warriors prepare for the California Classic at Chase Center and the Las Vegas Summer League from July 10-20, 2025, all eyes will be on Isaiah Mobley to see if he can make a lasting impression. Will he emerge as a hidden gem for Golden State, or is this signing merely a feel-good story with a famous last name? One thing is certain: the Warriors have once again proven their ability to surprise and captivate the basketball world.