Jannik Sinner’s bid to retain his Shanghai Masters title ended in agonising fashion on Sunday when the world number two was forced to retire mid-match against Tallon Griekspoor due to debilitating cramp in humid conditions.
Griekspoor was leading the third-round clash 6-7(3) 7-5 3-2 when Sinner suffered cramp in his thigh, forcing him to retire after more than 2-1/2 hours on court.
“This is definitely not the way you want
