The 37-year-old’s fitness had been in doubt ahead of his last-four clash with Alexander Zverev at the Australian Open.

The match assures a home player in the men’s final since Andy Roddick lost to Roger Federer 18 years ago.

The hotly-anticipated match will decide who reaches the Roland Garros final.

The world number one made it 20 straight victories, 15 in 2023, with a 6-3 7-5 victory

The title favourite took an off-court medical time-out and looked uncomfortable on Rod Laver Arena.