Castleton comes to the Sixers after appearing in 20 games this season with the Memphis Grizzlies and Toronto Raptors.

He can likely be ruled out for the entirety of the Grizzlies' three-game road trip that begins Thursday and ends next Thursday in Charlotte.

The Final Four is set for the 2025 NCAA Division I men's basketball tournament, featuring a historically stacked field with all four No. 1 seeds — Auburn, Duke, Florida and Houston — advancing ...