Time for Murray to retire. Playing tennis mostly seems like a chore for him now.
If he does retire after this, he goes down as the single greatest British sportsman, in my book. What he achieved, 2 Wimbledons, a US, a tonne of Masters, world number one etc, in an era where he was up against Federer, Nadal and Djokovic, is outstanding. He’s an inspiration
I think he personally feels like he's on his way back though. Since surgery this has been a much improved year so far. I think we'll see him do at least another year at Grand Slam level - maybe two more years. Then I think he'll call it a day.
Just a hunch but I think he still feels like he has something to prove in terms of his comeback. Time catches up with us all but even just coming back to play professionally and competing is an inspiration to many.