Concerns could arise with a fact that, at least, makes us think: at the end of the first week Novak Djokovic has already granted two sets to his opponents, one of the two on the evening of Saturday 4 September to Kei Nishikori; Zverev, one of his fiercest rivals who also recently beaten him at the Tokyo Olympics, gave only a partial in the night to American Jack Sock; Medvedev perhaps proves to be the fittest, continuing his clear path.
Meanwhile, Novak Djokovic made his in the third round of the US Open and continues the adventure in the last Slam tournament of the season, which would allow him with the triumph to complete the 'Calendar Grand Slam', after the victories at the Australian Open, Roland Garros and Wimbledon.
In the end, the Japanese fighter had to surrender in four sets to the strength and control of the Serbian, who trembled a little after the loss of the tie-break of the first set and a not perfect serve (13 chances to break) granted).
Djokovic on beating Nishikori
Novak Djokovic kept his Calendar Slam hopes alive with a gritty 6-7(4), 6-3, 6-3, 6-2 win over Kei Nishikori in the third round of the 2021 US Open on Saturday. Djokovic is now four wins away from becoming the first man since Rod Laver to win all four Majors in a calendar year.
In a separate question, Novak Djokovic was asked if he had ever been surprised by any title win or by victory in any particular match. The 20-time Major champion replied that he has never entered a Slam without believing that he could go all the way.
"Well, I would not be honest fully if I told you I don't think or I don't believe or I don't visualize that I can win every single Grand Slam that I play in," Djokovic said. "I'm not surprised when I win Slams and big tournaments because that's always a goal.
It's very clear image in my head and I try to do everything I can to get my hands on the Grand Slam trophy." Djokovic believes Nishikori gave him the "toughest match" of the 2021 US Open so far. "It was a tough battle," Djokovic said.
"So far the toughest match of the tournament for me. The opening two rounds obviously felt well, played good. But the pace of the ball and the speed of Nishikori's tennis today was just higher than the opening two rounds' opponents that I had."