John McEnroe believes that Andy Murray faces a different type of challenge as he heads into the US Open as the defending champion and on the back of his Wimbledon victory.
The world no 3 has yet to find his very best form since his historic win at SW19 and has subsequently fallen behind Rafa Nadal in the rankings.
McEnroe, however, sees no reason for Murray fans to be unduly concerned and has argued that the Scot will be a totally different prospect once the action gets under way in New York, despite the increased expectation on him.
"It's a different type of pressure," he said. "On the one hand he's done it (won the US Open), so that's amazing, but on the other hand, you're sort of the hunted more than you were in the past.
"If you combine that with Wimbledon, then this is the first shot where he has a legitimate chance to finish No 1 and be No 1 for the year, if he can get two majors.
"That's a different type of approach and people are going to be gunning for him even more - I think he's found that a little bit since playing Wimbledon, but he's much tougher to beat in a best of five than he is to beat in a best of three."
The former world No 1 also believes Murray will be prepared and ready to hit top form when the time comes at Flushing Meadows.
"He'll be ready and I know that after Wimbledon and getting ready to defend the US Open that he's trying to peak at that moment so it's going to be interesting," McEnroe added.
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