#MyUSOpen Exclusive: @delpotrojuan enters the semifinals at his most successful #GrandSlam, after defeating R. Federer in four sets. Watch as he talks about this momentous win and what lies ahead in his quest to win a second #USOpen title. (🎥 @fcphotography & @skinnywashere) __ #atp #tennis #instasport #juanmartindelpotro #argentina #argentine #instargentina #arthurashestadium #quotes #wordsofwisdom #delpotro