Proper noun
Opelka (plural Opelkas)
A surname from Czech.
All the momentum and positive vibes from a day earlier were gone, and though he played an outstanding fifth set, Opelka couldn’t quite get over the line against the volatile but talented Fognini. Source: Internet
There are still lots of improvements in Opelka’s game to be made, starting with his return of serve, which Opelka called “horrible.” Source: Internet