"He has beaten players who have already beaten Novak in Grand Slams," Chang warns Djokovic about Tien

Michael Chang, current coach of Learner Tien, has spoken about the upcoming match between his player and Novak Djokovic.

According to him, Tien has nothing to lose and is ready for this match. In an interview with the ATP, he stated: "I don't know how Djokovic will handle it. We obviously expect him to play at his best level, as always, in a Grand Slam.

But Learner has shown throughout the season that he can challenge the best players. He has beaten players who have already defeated Novak in Grand Slams, and he should draw confidence from that.

I think he is serving much harder now, for sure. He clearly has the ability. He is starting to incorporate that into his game.

I even think he has the ability to play very aggressively and finish points at the net. He has a good net game, and there's no reason why, in a very short time, he can't become an all-around player."

Djokovic and Tien will face off on Arthur Ashe Court this Sunday at 1 a.m. French time.