Thanasi Kokkinakis will have an MRI scan in London to determine the extent of the injury that's wrecked his Wimbledon hopes - and he fears the worst.
The joy of his remarkable triumph over 17th seed Felix Auger-Aliassime from two sets down on Wednesday turned to misery less than 24 hours later in his second-round match against French qualifier Lucas Pouille.
Trailing 2-6 7-5 4-2, Kokkinakis - a big man who's often talked of how tentative he feels with his movement on grass courts - slipped and twisted his left knee while trying to retrieve a forehand.