US Open 2019 power rankings 

#5 Kevin Anderson

Kevin Anderson reached the biggest final of his career at Flushing Meadows two years ago.

Kevin Anderson made the US Open final in 2017 and there is no reason why he cannot replicate that feat. He has a big game and his powerful serve and forehand can trouble even the best of players.

Apart from his sublime run at the 2017 US Open, Anderson also made a final and a couple of quarterfinals during the US Open Series. His form coming into this year's tournament might not be the best, but he can draw confidence from his previous displays during the American hardcourt season.

#4 Kei Nishikori

Of all the Grand Slams, Nishikori has had his best results at the US Open.

Kei Nishikori, much like Anderson, was a surprise finalist at the US Open. However, that was way back in 2014 and a lot has changed since then.

Luckily for the Japanese, the changes have been positive. He has surged up the rankings, won an Olympic medal, made a few big finals and grown in stature.

Nishikori will be looking for a deep run in Flushing Meadows yet again, having made it to the semifinals last year. He has looked in decent form in the warm-up tournaments and is definitely a dark horse for the title.

#3 Daniil Medvedev

Daniil Medvedev has won the most matches on the ATP Tour in 2019.

Based on sheer form, Daniil Medvedev is one of the top contenders for the title. The Russian has a 14-2 record in this year's US Open Series. He has made the final of all three tournaments that he's played, winning the crown in Cincinnati.

Medvedev has done well on the American hard courts in the past as well, having won the Winston-Salem Open last year, but this time around, he will be gunning for the big one.