Tennis

The world number five joins Caroline Wozniacki, Ashleigh Barty and Caroline Garcia as a player who has pulled out since the tournament started, as well as newly-crowned Australian Open champion Naomi Osaka, who withdrew days before the start.

The fourth seed and US Open champion made it two Grand Slam titles in a row after a see-sawing 2hr 27min match.

Greek 14th seed Tsitsipas had enjoyed a fairytale run to his first Grand Slam last four, including a win over Roger Federer, but found Nadal in ruthless form as he won in 1hr 46min.

The cameras dotted around Melbourne Park, which show players walking the corridors and making their way to the courts, were introduced this year and are not seen at any other major.

The reward for the 27-year-old Halep is probably the toughest challenge in the women's draw at Melbourne Park, a fourth round date with the younger Williams sister, Serena.

The Serb had a magnificent 2018, making an astonishing climb back from outside the world's top 20 in June, winning Wimbledon and the US Open on the way to reclaiming the number one ranking in November.

Roger Federer won the bragging rights over fellow tennis great Serena Williams as they faced each other on court for the first time on Tuesday, with Federer spearheading Switzerland's 4-2, 4-3 (3) victory in a mixed doubles decider at the Hopman Cup.

Roger Federer admitted he was nursing a bad hangover on Monday after celebrating a record eighth Wimbledon singles title.

Poland's Lukasz Kubot and Brazil's Marcelo Melo won the Wimbledon men's doubles title on Saturday after beating Oliver Marach and Mate Pavic 5-7 7-5 7-6(2) 3-6 13-11 in an epic test of endurance.

Tennis fans with tickets for Roland Garros on Wednesday are in for a bumper day of action, after rain and storms caused cancellations on Tuesday.