Cincinnati Masters a walk in the park for Federer | Thebigtip

By Reuters from abc.net.au

World number two Roger Federer, fourth-ranked Briton Andy Murray and Serbian second seed Novak Djokovic have all advanced to the ATP Cincinnati Masters quarter-finals.

Defending champion Federer had the easiest day, reaching the final eight by walkover when Germany's Philipp Kohlschreiber pulled out of their scheduled third-round match with a right shoulder injury.

The 16-time grand slam champion from Switzerland has not yet finished a set in the hard court event after a first-round bye and a 5-2 lead when Uzbek qualifier Denis Istomin retired with an injury Wednesday.

Federer will face either Nikolay Davydenko and David Ferrer for a berth in the semi-finals of the last major US Open tune-up.

British fourth seed Andy Murray advanced by outlasting Latvia's Ernests Gulbis 4-6, 6-3, 7-6 (7-4).

The 23-year-old Scotsman won six of nine break-point chances and made only 23 unforced errors while benefitting from 54 from Gulbis in booking a spot in the final eight.

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