With Rafael Nadal and Novak Djokovic among the walking wounded and Serena Williams already deciding not to defend her title, injuries and absentees have been the focus of attention ahead of the Australian Open

Roger Federer seeks to defend his Australian title, win 20th major, in injury-hit men's draw

Defending champion Roger Federer has been drawn in the same half of the Australian Open as six-time winner Novak Djokovic

Former world No.1 Angelique Kerber has continued her strong start to the season by advancing to the Sydney International semifinals with a 6-3, 6-1 win over Dominika Cibulkova

British qualifier Heather Watson has won the first 11 games of the match in defeating Donna Vekic 6-0, 6-4 and advancing to the Hobart International tennis semifinals

Ferrer, del Potro to meet in ASB Classic semifinal; Bautista Agut to face Haase

Top-ranked Rafael Nadal and defending champion Roger Federer have been seeded first and second for the Australian Open, meaning they can only meet at Melbourne Park this month if they set up a rematch of last year's final

Novak Djokovic impresses in his first competitive match in six months, a 6-1, 6-4 victory over Dominic Thiem at the Kooyong Classic

Top seed Sock bows out on bad day for Americans at ASB Classic

Wimbledon champion Garbine Muguruza has withdrawn with an injury from her second consecutive tournament to start the new year