The 37-year-old looked uncomfortable from the moment he stepped onto court and eventually conceded the match at 4-1 down after just 20 minutes of play.

This comes just 24 hours after the former world No.1 came through an epic three-set battle against Alexei Popyrin, marking his 32^nd singles win at the tournament. During that match Murray produced moments of magic that we’ve become so accustomed to over the years, which evidently led him to six titles across the singles and doubles game since his tournament debut in 2005.

Read more about Murray's achievements at the Queen's Club

In his post-match press conference, Murray admitted that he was struggling with neural pain in the right side of his back which led to a loss of power and coordination in his right leg.

"It wasn't great, I've been struggling with my back for a while - I had lost the power in my right leg so lost all motor control, I had no coordination and couldn't really move" he said.

"I was happy with the win yesterday but my back has been a problem for quite a while and it's been sore in the build up to the tournament and was sore in my match yesterday and through to today.

"I was able to manage it - it wasn't comfortable but during my pre-match warm-up I was pretty uncomfortable and when I walked up the stairs just before the match I didn't have the usual strength in my leg, it wasn't a usual feeling. During the first two balls I hit in the warm up - my right leg was so un-coordinated and it wasn't working properly.

"I've dealt with back issues for about 10 years or so and it's probably quite common for a lot of players but I've never had that loss of coordination, control and strength in my leg before."

He confirmed that he will get a scan tomorrow to assess the severity of the injury.

Murray was visibly struggling from the off as he conceded an immediate break of serve – winning just a single point on his opening service game. While the Australian cruised ahead to a hold to love, the five-time singles champion managed to string together a run of cheap points with some pin-point accurate serves before calling for the physio.

After receiving some treatment on his lower back, the Brit was prepared to give it another go but his body refused to let him as he went on to win just two of the next eight points before eventually calling an end to his second round match.

Despite a devasting end to what is likely his last appearance at the Queen's Club, the three-time Grand Slam champion received a warm reception from his home crowd as he waved good bye to every corner of Centre Court.

Murray will now aim to get ready for Wimbledon and the 2024 Paris Olympics in just a few weeks time.