The man, who was not identified, had left Raducanu a note and took her photograph during the tournament.

During her second-round match against Karolina Muchova on Tuesday, Raducanu saw the man in the stands. Raducanu was later seen behind the umpire’s chair and in tears.

“The individual signed a formal undertaking to maintain distance from her and has been banned from future tournaments,” Dubai’s media office said in the statement. “Dubai remains committed to ensuring the safety and security of all residents and visitors to the emirate.”