Arsenal boss Arsene Wenger doesn't believe that he will equal Sir Alex Ferguson's 25 years in management.
The Gunners coach is the latest manager to pay tribute to the 69-year-old, who will celebrate the milestone this Sunday.
"All you can say is that it is remarkable through the quality and the consistency," said Wenger.
"It is exceptional as well because I don't know anybody at the top level who has done 25 years at the top level with the same club. Certainly never anybody will do it again.
"The distance is a bit far [to match], that would be 10 more years. I am already happy if I make this year a good season after all of this!"
Arsenal continue their Premier League campaign with a home fixture against West Bromwich Albion this Saturday.