Federer strolls, Djokovic, Murray scramble

Olympic Games Men’s singles Nishikori bt Ferrer 6-0, 3-6, 6-4 Isner bt Tipsarevic 7-5, 7-6 Del Potro bt Simon 6-1, 4-6, 6-3
Roger Federer.
Roger Federer.
Quartz