Roger Federer 'will get back to competing' on the ATP Tour, says Andy Murray - and he hopes they have at least one more on-court battle to come.
Fededer has struggled with a knee injury since February 2020, with him undergoing three operations in an attempt to fix the problem.
He made an unsuccessful comeback attempt last year, and is not scheduled to return until the Laver Cup in September.
It is all very reminiscent of what Andy Murray himself went through with the hip problem that looked like it had decimated his career.
However, Murray is back on the ATP Tour and looking more like his old self every week, and he has backed Roger Federer to get to the same point too.
"I would love to see Roger back playing again," Murray told atptour.com.
"It's always difficult to know when the end is. Obviously, people have been talking about it for many years. The next generation have come through, [but] the same guys are still winning the Grand Slams and I'd love to see Roger back competing again.
"I don't know his situation, but I believe he will get back to competing. I don't know how long for, but I really hope we can play another tournament together. It's been a long time."
Andy Murray has bene open to playing Challenger events during his comeback, including last week in Surbiton.
It is unlikely that Federer will do the same, but Murray believes injury really makes a player find a fresh appreciation for their love of tennis.
"[My motivation] comes from enjoying the sport, loving the sport," he said. "My situation is a bit different to his, with the operation that I had.
"I believe he is playing to try and break records and win the major events. Absolutely you have to love it and be willing to play through some pain as you become an older athlete, but I think it is easier to play through the pain when you are competing for major titles.
"For me the past four or five years have been very different to that, playing Challengers and my ranking dropped.
"I feel like our situations are different, but ultimately the reasons I am still playing are because I love the game."