Does playing basketball affects or diminishes your ability to play guitar?

I remember a long time ago my guitar teacher told me that everything I had practiced during a week could be lost just by playing a single basketball match. I dont know if that is completely true but since your hands do receive impact from passing and dribbling I have to admit I myself have experienced my hands becoming clumsy and stiff after playing. Any thoughts on this?
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Hard to play with jammed fingers, but otherwise, no...
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no but playing basketball diminishes your ability to be a white

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what is with grammars in title?

I know, sorry English is not my native language
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what is with grammars in title?

What is with the grammar in the title?*
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No impact whatsoever.

If that were true, playing guitar will undo a week's worth of guitar practice. After all, my fingers get clumsy and stiff after long playing sessions without a break.
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