US Open: Roger Federer, Serena Williams march on to quarters with ease
Tennis | Sep 02, 2019, 07:07 AM ISTRoger Federer made light work of David Goffin with a 6-2, 6-2, 6-0 win while Serena Williams defeated Petra Martic 6-3, 6-4 in the pre-quarters of US Open.