Stan Wawrinka beat an injured Rafael Nadal to win his first Grand Slam title with a 6-3, 6-2, 3-6, 6-3 victory  in the Australian Open final.

He had never won a single set off Nadal in 12 previous meetings, but the 28-year-old Swiss was in control this time.

Wawrinka will go from number 8 to number 3 in the world.

In doing so, he’ll surpass Federer, a 17-time Grand Slam winner, who lost to Nadal in the semis — to become the highest-ranked Swiss player for the first time in his career.

Nadal appeared to be on the verge of retiring in the second set, when he tweaked his back and needed a medical time out.

He’s had a bad stretch with injuries at the Australian Open, and has described it as his unluckiest Grand Slam.

Nadal missed it last year during a seven-month layoff with knee injuries and illness, and his quarterfinal losses in 2010 and 2011 were also affected by injuries.

Meanwhile, Toronto’s Daniel Nestor won the mixed doubles title, his fourth.

He’s also won eight mens Grand Slam doubles titles.

The women’s singles title was won by Li Na who beat Dominika Cibulkova 7-6 (3), 6-0.