Rafael Nadal is "100%" given preferential treatment by umpires, claimed Denis Shapovalov after his defeat by the Spaniard in their Australian Open quarter-final.
Shapovalov was unhappy with the amount of time he thought Nadal was taking between points and twice complained to umpire Carlos Bernardes.
"I think it's unfair how much Rafa is getting away with," said Shapovalov.
In reply, 35-year-old Nadal said: "I believe he is wrong in this case."
Shapovalov, 22, lost in five sets to 20-time Grand Slam champion Nadal at Melbourne Park on Tuesday, having fought back to level after going two sets down.