Top seed Alexander Zverev switched into survival mode to claim a milestone 500th ATP match win on Thursday, fighting back to beat Matteo Arnaldi 6-7 (5/7), 6-3, 6-2 at the Toronto Masters.

It’s a great achievement. Not a lot of player reach this milestone. But I still want 500 more,” Zverev, winner of 24 ATP titles, said

Germany's Alexander Zverev reached the last 16 of the Toronto Masters after claiming his 500th tour-level win on Thursday evening. Zverev defeated Matteo Arnaldi 6-7 (5-7), 6-3, 6-2 to become the fifth and youngest active player to reach 500 wins.