Arsenal boss Arsene Wenger believes he will retire well within ten years, as age is beginning to catch up with him.
"I think that the club can go on very well for more than ten years, but not me," Wenger told a French magazine.
"I have to accept the idea that in ten years, I will be 67. This job requires physical and instinctive strength, animal strength to express the desire to win.
"It has to be part of you, but it can disappear with age."
He also admitted that being obsessed with success has made him lose track of time, that seems to be flying by.
"I am obsessed with it [success, winning]," he said. "Maybe I have left it too long without being conscious of the time that passes by.
"At the age of 50, you start to see what there is at the summit of the mountain, and it is a painful discovery to understand that you don't live forever.
"At that moment, it is time to ask yourself how you will use the time left: to continue like you always did, or to give another orientation to your life.
"The real motto of my life is to tell myself that tomorrow, I will be better than today. I have never accepted people who say 'I am not good at it'.
"It even could have gone at the age of 45. Some guys are fed-up with coaching at 40.
"But then there is Bobby Robson or Giovanni Trapattoni who will die with that desire. I have to be reasonable."
Goal.com - Age Catching Up With Me, Admits Wenger