LONDON, ENGLAND - JULY 06: Kei Nishikori (JPN) in action against Steve Johnson (USA) during their Gentlemen's Singles 3rd Round match on Day 6 of The Championships - Wimbledon 2019 at the All England Lawn Tennis and Croquet Club on July 6, 2019 in London, England. (Photo by Simon Stacpoole/Offside/Getty Images)