Victor Wembanyama and Stephon Castle are turning San Antonio into a problem no opponent can ignore. Wembanyama made the All-Defensive First Team this season and was named the league’s first unanimous DPOY, while Castle did not make the All-Defensive Team despite receiving five first-place votes and 36 second-place votes.
Castle’s omission does not change the season he put together in year two. He established himself as one of the most reliable one-on-one defenders in the NBA, taking on three named perimeter scorers — Shai Gilgeous-Alexander, Cade Cunningham and Luka Doncic — and surviving the assignment with enough success to earn notice from voters. The guard’s rise gives the Spurs a rare kind of balance: a perimeter stopper on one end and a dominant rim protector on the other.
That pairing is the reason the Spurs cast around Wembanyama and Castle in such ambitious terms. The team started with Wembanyama and added Castle the next year, and the result is one of the scariest defensive duos in the NBA. Castle’s elite point-of-attack defense fits cleanly beside Wembanyama’s rim protection, creating a cover system that can erase mistakes before they become points.
Mitch Johnson said he felt comfortable putting Castle on bigger forwards and centers, a trust that says as much about Castle’s strength and discipline as it does about the Spurs’ plan. In a league where most young guards are still being hidden from the toughest matchups, Castle is being asked to meet them head-on, then absorb the next challenge when the action shifts toward the paint.
That is why the Spurs’ defensive upside feels bigger than a single awards ballot. Wembanyama already owns the league’s most intimidating back-line presence, and Castle has become the kind of on-ball defender who can make opponents work to even start their offense. Together, they give San Antonio the basis for something larger than a strong season: a foundation that could carry a future dynasty if the rest of the roster catches up.

