She's a Gamer On and Off the Court Osaka often talks about her love for video gaming. In fact, she once told GQ that, after spending an average of four hours training at the Evert Tennis Academy in Boca Raton, FL, she'd spend another four to five hours playing Overwatch with her sister Mari. And that's not even her favourite game — that honour goes to Skyrim, she once revealed in an Instagram story.