Del Potro ends Federer run

Updated: November 11, 2012

Juan Martin Del Potro ended Roger Federer’s 3 year unbeaten run when he booked his place in the semifinals with victory over the Swiss. Del Potro now takes on Novak Djokovic in the semifianls.

Del Potro, fresh from beating the Swiss in the Basle final a fortnight ago, claimed a 7-6 4-6 6-3 victory at the O2 Arena to guarantee himself runner-up spot in Group B with a 2-1 record, the same as defending champion Federer who will meet Andy Murray for third time in London this year in the other semifinal.

David Ferrer beat Janko Tipsarevic 4-6 6-3 6-1 in the last round-robin match in the evening to also end with two wins and one defeat but the Spaniard missed out on sets countback.