The Philadelphia 76ers have signed Isaiah Mobley to fill a roster spot ahead of their season finale against the Chicago Bulls. The move follows the loss of Colin Castleton, who joined the Toronto Raptors, and Jeff Dowtin Jr., whose contract expired. Mobley, brother of Cleveland Cavaliers star Evan Mobley, has averaged 17.4 points and 7.9 rebounds over 22 games with the Delaware Blue Coats in the G League. His experience includes 22 games in the NBA with the Cavaliers, where he holds career averages of 2.5 points and 1.4 rebounds. The Sixers are looking for a strong performance from Mobley as they prepare for an uncertain offseason.