The great John Mcenroe remains unsure of how will world No. 2 Andy Murray react at the US Open after taking a nearly two-month break.

Murray [VIDEO] last played at Wimbledon, where he lost in the quarter-finals to Sam Querrey of the USA. Since then, the Scot has been actively trying to heal a hip injury, which hampered his campaign at Wimbledon.

Murray [VIDEO] has missed the entire US hard-court swing so far but remains keen on playing at the US Open. The US Open is set to be held August 28 - September 10.

Murray has been battling with health problems the entire season. Earlier this year, the Scot had to take care of shingles and was dealing with an elbow injury.

It all affected Murray's season, who lost his No. 1 ranking to Spain's Rafa Nadal and has yet to win a Grand Slam or Masters 1000 title in 2017.

"We don't know how Murray will play – we are all wondering the same question. Did the break help me mentally? Maybe. Is it going to hurt him physically? Maybe? The fact that he rested his hip, is that good? Probably," McEnroe said, as quoted by Mirror Online.

Murray lacks matches

2012 US Open champion Murray is preparing for a challenging campaign at this year's US Open. The Scot is set to be fresh in New York but not playing since Wimbledon could take its toll as he will need some time to get into the rhythm.

However, McEnroe is not counting out Murray as he is aware of the Roger Federer case. The Swiss called it a season after 2016 Wimbledon as he decided to repair his damaged knee.

Playing his first tournament since the surgery, the 36-year-old conquered the Australian Open last January.

"The fact that he didn't play any matches. Probably not the best thing," McEnroe opinioned. "But Roger didn't play for six months before winning in Australia so he is obviously banking on something along those lines."

McEnroe puts Nadal and Federer ahead of Murray

Murray's 2017 season still remains pretty much a doubt as it's not known whether he will ultimately decide to call it a year. However, the three-time Grand Slam champion could see at the US Open if there is any point in continuing his so far disappointing season.

Once the US Open comes to an end, the season switches to indoor tournaments across the Europe and Asia. Murray has lots of points to defend in the upcoming period as he ended champion at five indoor tournaments after last year's US Open.

ESPN analyst McEnroe added he is not sure whether Murray is fully healthy yet and he "may need something done" after the US Open. The analyst further added: ''It is hard not to pick Roger and Rafa to win it. Andy is normally tough to beat in a best-of-five-set match but we are just not sure where he is at.''