Castle, a guard prospect, sits in the mix for early-season minutes behind Fox with Harper likely earning more later. The rookie-extension timeline signals a growing role; his development will influence the Spurs’ guard rotation and fantasy upside, especially in steals, assists, and scoring pace as he adapts to pro speed.

Castle joins the Spurs’ rookie crowd in a calendar full of tests, poised to contribute through scoring bursts and distribution. His early minutes could carve a path to multi-cat contributions, especially if his defense translates quickly to NBA pace and decision-making.

Castle is highlighted again for defensive upside and possible shooting development, presenting a potential two-way guard who could contribute as a spot-up shooter and lockdown defender in 2028.

Stephon Castle is another promising rookie for the Spurs, but like Harper, he will need to prove himself in a competitive environment alongside De'Aaron Fox. The competition for the guard position could shape the team's future significantly.

Stephon Castle, the reigning NBA Rookie of the Year, is poised to join the Spurs' promising lineup. His development alongside Wembanyama and Fox will be crucial as the team strategizes for both immediate impact and future success.