Playing in the Wimbledon ladies' invitation doubles on Friday, Kim Clijsters, Rennae Stubbs, Conchita Martinez and Andrea Jaeger had a lot of fun. They invited a man from the crowd to sub in, but the problem was, he wasn't following the formal all-white Wimbledon dress code.

Clijsters knew just what to do:

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The new skirt wasn't enough though:

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The dress code hasn't been all fun and games for the All England Club as umpires have asked both pros and juniors to change for wearing non-white undergarments.

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WATCH: Clijsters has
fun with all-white
rule at Wimbledon

WATCH: Clijsters has fun with all-white rule at Wimbledon

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