Roger Federer suffered his earliest defeat at the Miami Open since 2000 and will lose his world No 1 ranking after a second-round defeat to Australian world No 175 Thanasi Kokkinakis.
Roger Federer suffered his earliest defeat at the Miami Open since 2000 and will lose his world No 1 ranking after a second-round defeat to Australian world No 175 Thanasi Kokkinakis.