World number 1 Rafael Nadal was stopped at a checkpoint by a security person who asked the 19-time Grand Slam winner to show his accreditation.
Nadal was training outside and not carrying his accreditation and it needed a colleague of the security official to intervene and familiarise his colleague with the great Spaniard.
Nadal was seen smiling and patting the back of the official before leaving in a video shared on ATP’s Twitter account.
Nadal is took on Dominic Thiem in the quarter-final clash on Wednesday. Meanwhile, arch-rival Roger Federer will take on Novak Djokovic in the first semi-final on Thursday.