A. Rafael Nadal
B. Daniil Medvedev
C. Novak Djokovic
D. Roger Federer
Explanation:
Rafael Nadal won his record-breaking 21st Grand Slam title after making a stunning comeback in the men’s singles final at the Australian Open 2022. He defeated world No. 2 Daniil Medvedev, 2-6, 6-7 (5), 6-4, 6-4, 7-5 in the final match that lasted 5 hours and 24 minutes.