World No. 22 Hubert Hurkacz has pulled out of the Miami Masters tournament due to a lower back problem.
In the second round of the Masters, the 2021 champion was scheduled to compete against Luciano Darderi. He will be replaced by lucky loser Adam Walton.
It`s also noted that Hurkacz will not participate in the doubles tournament, where he was supposed to team up with German player Tim Puetz.
