An imperious Ashleigh Barty became the first Australian to win her home Grand Slam in 44 years Saturday, halting the charge of fearless American Danielle Collins in straight sets.

The World No. 1 was 5-1 down in the second set but came storming back to win on a tiebreak and sweep past the 27th seed 6-3, 7-6 (7/2) to be crowned Australian Open champion in front of an expectant Rod Laver Arena crowd.

It was a third Slam title for the 25-year-old after her breakthrough French Open success in 2019 and Wimbledon last year, joining Serena Williams as the only active players to win majors on all three surfaces.

She achieved the feat with Christine O’Neill, the last Australian to win in Melbourne, watching in the stadium.

O’Neill won the title in 1978 and told reporters before the match: “I’m probably her (Barty’s) biggest fan. I’d be happy to hand it over to her because she’s so deserving of it.

In Men’s Singles final, Russian Daniil Medvedev will take on Spaniard Rafael Nadal at 2 pm today (Jan. 30).