Chennai Open: Three-time champion Wawrinka through to quarters
Australian Open champion Stan Wawrinka advanced to the quarterfinals of the Chennai Open by beating Croatian teenager Borna Coric 6-1, 6-4 Wednesday.
The top-seeded Swiss, looking for his third title in Chennai, is preparing to defend his lone Grand Slam title later this month in Melbourne.
Wawrinka will next play eighth-seeded Gilles Muller of Luxembourg, who defeated Elias Ymer of Sweden 6-4, 6-3.
Fourth-seeded David Goffin of Belgium and Andreas Haider-Maurer of Austria also advanced.