Roger Federer will resume his Basel campaign when he goes up against Denis Istomin during second-round action on Thursday. Grigor Dimitrov and Vasek Pospisil are also aiming for a place in the quarterfinals.
Results have been mixed for the host nation at the Swiss Indoors Basel, with only Roger Federer still alive. Marco Chiudinelli lost a tough three-setter to Ivan Dodig on Tuesday and No. 3 seed Stan Wawrinka was upset by Mikhail Kukushkin.