I'm more of a casual tennis fan but looks to me like Naomi Osaka might be the real deal. Australian Open champ and a world #1 ranking (first Asian player to do so) She should have won in straight sets against Kvitová but let herself get distracted or something before she rallied and took the third set. She keeps herself focused in a match, she's going to be good for a long time. First player since Capriati to follow up a first grand slam victory with another. French is going to be interesting on the ladies side - she's had early round success there.