ESPN's Keith Olbermann argues with 13-year-old girl on Twitter

Keith Olbermann of ESPN recently named former Flyer and current Vancouver Canuck Tom Sestito the "World's Worst Person In Sports," which is a reoccurring segment on his talk show "Olbermann."

Sestito jokingly thanked Olbermann for the recognition on Twitter.

Sestito's sister responded a little differently and took a shot at the talk show host.


Olbermann, being who he is, responded to the tweet from Sestito's sister. Several times, in fact.

Sestito's sister fired back at Olbermann, revealing that he had been fighting like a teenage girl with... a teenage girl.