09/10/2011 09:10 am ET Updated Nov 10, 2011

Matthew Perry And Lizzy Caplan: Another Hollywood Odd Couple? (PHOTO)

"Friends" star Matthew Perry, 42 and "Mean Girls" actress Lizzy Caplan, 29 (who have been quietly seeing each other for quiet some time now) made a rare public appearance as they joined the slew of stars taking in tennis matches at the US Open in NYC on Thursday. Click through for photos!

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