John McEnroe reveals Jannik Sinner's 'kryptonite' after dramatic French Open disaster
The world No 1 crashed out of the tournament on Thursday
Jannik Sinner
Jannik Sinner completes remarkable career achievement after Italy Open victory over Casper Ruud
Jannik Sinner is in formidable form this year
Jannik Sinner hints at boycotting grand slams if players do not start receiving 'respect'
The Italian has shared his thoughts on the ongoing calls for tennis stars to miss grand slams
