Roger Federer of Switzerland celebrates after winning his first-round match against Aljaz Bedene of Slovenia at the Australian Open. Tracey Nearmy / EPA
Roger Federer of Switzerland celebrates after winning his first-round match against Aljaz Bedene of Slovenia at the Australian Open. Tracey Nearmy / EPA

Australian Open order of play on Day 4: Federer, Djokovic, Kerber and Halep all up