Japan's Naomi Osaka, a four-time Grand Slam singles champion, will work with Polish coach Tomasz Wiktorowski on a trial basis ...

Serena Williams' childhood coach Rick Macci still believes in Naomi Osaka but highlights to the former world No. 1 that she must find the right guidance and fix some technical stuff in her game.

Iga Swiatek arrives in a renewed state of confidence after winning the Wimbledon title, her sixth Grand Slam title. The Pole had experienced a last year with several painful defeats, falling in ...