piper perabo covert affairs injury 'Covert Affairs': Piper Perabo sustains knee injury on setIt’s not a good week for celebrity knees.

After reports of Scott Caan‘s “Hawaii Five-0” stunt-induced knee injury, now “Covert Affairs” star Piper Perabo has had her own bad luck in the knee department.

TMZ reports the actress sustained an injury while filming, August 18, on her show’s Toronto set. She’s already been treated and is expected to fully recover. Hopefully the series’ Season 2 pick-up will ease her pain.

Zap2it has reached out to USA to see if the injury will interrupt the current season’s production schedule — or, like Caan’s, if it will be written in.

And TV stars, please watch your backs. Like deaths, on-set knee injuries tend to come in threes.

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Photo credit: USA

Posted by:Mikey O'Connell