'Biggest Comeback of My Tennis Career': Rafael Nadal Describes Record-Breaking Win in Australia

Spanish tennis great Rafael Nadal became the first man to claim 21 Grand Slam titles after defeating World No. 2 Daniil Medvedev in the Australian Open final on Sunday. The 35-year-old is only the third player after Novak Djokovic and Rod Laver to win all four Slams at least twice in their career.