The 29-year-old Marin Cilic, who fell in five sets against Roger Federer in the final of the Australian Open, says that his opponent is still at the top because he really enjoys the game.
“I would say the passion to compete, season after season, especially at this high level. Then also being able to challenge himself first physically and then mentally, to be at the top almost every single week,” Cilic said. “To work hard and improve, those things we know he's doing really well. We know he has the level. With his game style, it's very all-around.”
Federer now has 20 Grand Slams and has won three of the five majors he has played since an injury sidelined him in 2016.