The mechanism
Beilock's research shows choking often comes from overthinking a skill that should be automatic — under pressure, we start consciously monitoring actions our body already knows, and that interference is what breaks them. Worries also eat up the working memory a task needs. The counters that help include practicing under mild pressure so it's familiar, focusing on the outcome or a single cue rather than the mechanics of the movement, and simple routines that quiet the noise.
What I do with it
Two moves for me. First, I train under pressure on purpose — small consequences, an audience, a scoreboard in practice — so that a pressured moment in a game isn't the first time they've felt it. You can't develop composure in a calm environment; it's a rep like anything else. Second, I coach players to keep the ball rolling rather than freeze into mechanics, because a player thinking about their technique in a big moment is a player about to overthink. This is one of the clearest places to teach handling pressure, which is exactly the kind of person, not just player, I'm trying to develop.