r/GoalKeepers

Hi everyone,
I'm a goalkeeper dealing with a specific physical reaction before games, and I’m looking for insights or advice.
Right before matches with my current team, I get intense physical nerves. Specifically, my legs turn completely to jelly—they feel like pudding, and it feels as though all strength and explosiveness just vanish.
What makes this strange to me:
It only happens with this specific team. I haven't had this issue in other setups.
Mentally, I feel completely fine. I am not afraid of making mistakes; I genuinely accept that errors are just part of the game and I don't feel conscious panic or dread.
Yet, despite my mind being calm, my nervous system seems to react entirely on its own, and the physical symptoms take over.
Has anyone experienced this disconnect between a calm mind and an overreactive body? Any techniques, somatic exercises, or pre-match routines to get my body to listen and regain physical strength?
Thanks in advance.