Manchester United veteran Ryan Giggs, who turned 40 on Friday, has admitted that he dreads the day when he will realise that it is time for him to retire.
The Welshman says he is not contemplating hanging up his boots, but with 953 United appearances to his name, he knows there will come a time when he has to turn the page on his playing career.
"There will be some incident; something will not be quite right, I'll feel different," he told BBC's Football Focus programme on Saturday.
"I'm obviously wary of that, because I'm still wanting to do well and wanting to focus on winning games."
Giggs hailed the influence of former manager Alex Ferguson, who personally visited his house in Salford on his 14th birthday in 1987 to persuade him to sign for United.
"When you're starting out, you don't look forward 10 to 15 years; it's a million miles away," Giggs said.
"He (Ferguson) was a massive part of my career: you knew with the manager at the helm you always had a chance of success. From first meeting him at 12, 13 up until now, he still has an influence."
Giggs is now working alongside Ferguson's successor, David Moyes, as a coach and he applauded the club for not turning to a manager from overseas.
"I'm enjoying it, the coaching role," Giggs said.
"It was always going to be a big ask, whoever took over. He (Moyes) had such a successful time at Everton, I think he deserves it.
"It's great for a British manager to have this chance because historically in the last 20 years these jobs have gone to foreigners. I'm enjoying playing under him and learning under him as a coach as well."