A. Roy Emerson of Australia
B. Bjorn Borg of Sweden
C. Pete Sarnpras of US
D. Roger Federer of Switzerland
✅ The correct answer is option D.
Roger Federer has won the most Grand Slam titles, most recently the Australian Open in 2018, with a total of 20. He has also consistently ranked amongst the top tennis players in the ATP Rankings throughout his career.
Roger Federer has won the most Grand Slam titles, most recently the Australian Open in 2018, with a total of 20. He has also consistently ranked amongst the top tennis players in the ATP Rankings throughout his career.