A man who "exhibited fixated behaviour" towards British tennis player Emma Raducanu was detained and given a restraining order, Dubai Police said.

An clearly upset Raducanu was seen hiding behind the umpire's chair two games into a second-round defeat at the Dubai Tennis Championships on Tuesday.

Raducanu, 22, had spotted the man in the first few rows of the stand during her match against Karolina Muchova.

Raducanu was approached by the same man, who gave her a letter and took a photograph, in a public area close to the tournament on Monday.

Dubai police said the man was detained before Raducanu decided not to press charges.

"Following Raducanu's complaint, Dubai Police detained a tourist who approached her, left her a note, took her photograph, and engaged in behaviour that caused her distress," Dubai police said.

"While Raducanu later chose to drop the charges, the individual signed a formal undertaking to maintain distance from her and has been banned from future tournaments."