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Spurs fans can't ignore the tough reality of Stephon Castle's first playoff run

No young star can avoid this.
Jun 2, 2026; San Antonio, TX, USA; San Antonio Spurs guard Stephon Castle (5) talks to press during the NBA finals media day at Frost Bank Center. Mandatory Credit: Dustin Safranek-Imagn Images
Jun 2, 2026; San Antonio, TX, USA; San Antonio Spurs guard Stephon Castle (5) talks to press during the NBA finals media day at Frost Bank Center. Mandatory Credit: Dustin Safranek-Imagn Images | Dustin Safranek-Imagn Images

You don't have to be a rocket scientist to know that it's been quite an interesting postseason for Stephon Castle. You can't deny the fact that he's had some stellar moments, but there have also been some rough patches that are hard to ignore. But it's important to understand that those rough patches are a necessary part of his path to greatness.

Of course, his flaws can be disappointing, especially on the NBA Finals stage. He tends to turn the ball over a ton and can run into nights where he's struggling to make shots. Look at Game 2 against the Knicks, for example. He made just 35% of his looks and had four giveaways.

So yes, without a doubt, the Spurs need him to tighten up on his mistakes this series. But it's important that we still see the big picture. His first playoff run is a necessary crash course that will help him transform into one of the best guards in the Association.

Stephon Castle is learning a valuable lesson in point guard play

The most glaring part of Castle's struggles on the offensive end is his tendency to play out of control. There have been a handful of possessions this postseason where he's barreling aggressively towards the rim, sometimes without a plan. This leads to turnovers or sporadic shot attempts around the basket.

Learning to slow things down and sharpen up as a decision-maker is key for him if he wants to be a reliable lead guard in the future. But there's no better situation for him to get that sort of lesson than on the NBA Finals stage.

You can't hope for him to develop into an elite floor general for his team if he doesn't have the reps in big games. Let's not forget, he's a second-year player operating in a new role. He was never highly touted for his ability as a lead guard.

Now, this is not an outright excuse for his struggles. He needs to fix things if the Spurs want to come out victorious in this series. But at the same time, we need to expect young players to take their punches on these stages, especially when they carry a heavy load on offense.

Castle's defense is getting put to the test

I've been a fan of Stephon Castle's defense all year long and thought it was a travesty that he didn't make an All-Defensive team. But great defenders tend to get tested on the postseason stage and walk away with some notes on how to improve. For Castle, he needs to get better at guarding without fouling.

His aggressive approach on that end does work at times and gives shades of that good old-fashioned 90s defense that everyone wished to see again. But it also leads to some untimely fouls that can disrupt big runs for the Spurs.

It does make sense. He's playing the best of the best on offense, going from guarding Shai Gilgeous-Alexander one series to Jalen Brunson in another. These are two of the league's best at getting opponents to fall for the bait and rack up violations.

Similar to his offense, he does need to improve at defending without fouling. That's a non-negotiable if the Spurs want to complete a championship run. But it's still fair to look at the bigger picture. This is all a part of molding him into the player that Spurs fans know he can be.

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