Shanghai - Swiss legend Roger Federer defeated Frenchman Richard Gasquet on Friday to tee up a Shanghai Masters semi-final with Juan Martin del Potro.
The 36-year-old Federer was relatively untroubled as he eased to a 7-5, 6-4 victory over the unseeded Gasquet.
He is scheduled to face Del Potro in the last four, although the Argentine's participation is in doubt after he injured a wrist in his quarter-final victory.
Collated results from the ATP Shanghai Masters on Friday (x denotes seeding):
Roger Federer (SUI) bt Richard Gasquet (FRA) 7-5, 6-4
Juan Martin del Potro (ARG x16) bt Viktor Troicki (SRB) 4-6, 6-1, 6-4
Rafael Nadal (ESP x1) bt Grigor Dimitrov (BUL x6) 6-4, 6-7 (4/7), 6-3
Marin Cilic (CRO x4) bt Albert Ramos-Vinolas (ESP) 6-3, 6-4