![Jannik Sinner should be "Top 5 or even better" - Serena Williams' ex-coach Patrick Mouratoglou reveals flaw preventing the Italian from higher ranking Jannik Sinner should be "Top 5 or even better" - Serena Williams' ex-coach Patrick Mouratoglou reveals flaw preventing the Italian from higher ranking](https://staticc.sportskeeda.com/editor/2023/02/55630-16772123456434-1920.jpg)
Jannik Sinner should be "Top 5 or even better" - Serena Williams' ex-coach Patrick Mouratoglou reveals flaw preventing the Italian from higher ranking
![Jannik Sinner is keen to focus on the positives after just missing out on Miami Open title | Tennis News | Sky Sports Jannik Sinner is keen to focus on the positives after just missing out on Miami Open title | Tennis News | Sky Sports](https://e0.365dm.com/21/04/2048x1152/skysports-jannik-sinner-tennis_5331707.jpg)
Jannik Sinner is keen to focus on the positives after just missing out on Miami Open title | Tennis News | Sky Sports
![Next Up: Jannik Sinner one to watch heading into 2020 US Open - Official Site of the 2023 US Open Tennis Championships - A USTA Event Next Up: Jannik Sinner one to watch heading into 2020 US Open - Official Site of the 2023 US Open Tennis Championships - A USTA Event](https://photo-assets.usopen.org/images/pics/large/f_Sinner-1_NextGen.jpg)
Next Up: Jannik Sinner one to watch heading into 2020 US Open - Official Site of the 2023 US Open Tennis Championships - A USTA Event
![Miami Open: Jannik Sinner is fast becoming the next big thing in men's tennis with a rapid rise up the rankings | Tennis News | Sky Sports Miami Open: Jannik Sinner is fast becoming the next big thing in men's tennis with a rapid rise up the rankings | Tennis News | Sky Sports](https://e0.365dm.com/21/04/2048x1152/skysports-jannik-sinner-tennis_5326151.jpg)