According to a report in the NY Post, ER hunk John Stamos was sporting a pretty gnarly black eye when he showed at chic Japanese eatery Morimoto last week for dinner with pals Eric Dane and Rebecca Gayheart.

The Post‘s witness also claims that the hunky actor was behaving a little out-of-sorts, allegedly "putting his head on the table and flailing his arms."

But don’t worry about John. Apparently his facial bruise is the result of some exercise-gone-wrong. "[He] got the black eye from a kick-boxing accident," a rep for the star tells the newspaper.

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