Andy Murray's fiery character means any coaching partnership would not have lasted long, says John McEnroe.
Seven-time Grand Slam champion McEnroe, who currently coaches Canadian Milos Raonic, was disqualified from the 1990 Australian Open for abusing an official, and had a history of being hot-headed during matches.
Murray is all set for Wimbledon, which starts on Monday June 27, having been handed second seed status and he will look for a second title under the guidance of coach Ivan Lendl again.
McEnroe has often been linked with the role of coaching Britain's No 1 but the American says there is a reason why the two have not worked together.
"He's much quieter and his energy is very different from mine but that part of it [temper] is very similar," McEnroe said.
"I don't think I would be able to handle that for too long. It might be a very short relationship.
"I understand that he may think that's how he ticks, or whatever it is. Some of it is understandable, but other times it's like, 'come on'."
Murray's reunion with Lendl got off to a winning start last week with the 29-year-old winning the Queen's Club trophy for a record fifth time.
McEnroe said that Lendl, with whom Murray enjoyed his most successful period winning two Grand Slams and an Olympic gold, will be a calmer influence on the Scot.
"From what I recall Andy didn't do that very much with Lendl," McEnroe added. "If at all, I don't remember him ever doing it, and then he had his best success."
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