Federer’s Former Coach Commends Sinner’s Mental Resilience in Doping Case
[ad_1] Jannik Sinner‘s resilience during the recent doping saga showed former ATP player and former Roger Federer’s coach, Ivan Ljubicic, just how mentally tough the Italian is. As a former player based in and around Italy for a long time, Ljubicic is quite familiar with the scene. He’s known about Sinner for a very long…
