A few celebrities spent their Monday night at the NetJets Showdown at Madison Square Garden. Roger Federer‘s parents, Robert and Lynettee, sit next to longtime girlfriend Mirka Vavrinec. Roger’s besty Tiger Woods watches the match with Elin Nordegren. Heavyweights: Rupert Murdoch and Anna Wintour. Not shown: Barry Diller, Donald Trump, Ivan Lendl, Stan Smith, John […]