Former Manchester United striker Wayne Rooney has said his former boss, Sir Alex Ferguson, has the edge over Manchester City's Pep Guardiola when it comes to ranking the managerial greats.
This season, Guardiola clinched a fourth consecutive Premier League title for the Etihad club.
It is a feat never managed by Ferguson or any previous club in English football history.
It also took Guardiola's total haul to six titles in his eight seasons at Man City.
But he is still behind Ferguson's record of 13 championships during his 26 years in charge of United.
"I think of course there are going to be arguments as to who is better, but I think people tend to just look at what Sir Alex did at Manchester United, and what he did at Aberdeen was incredible," Rooney said in an interview with ESPN Brasil.
"And you'd ask the question, could Guardiola do that at a team like Aberdeen? There's questions, there's debate. I think Guardiola for his era is of course the best and he's changed the way football is played worldwide, but yeah for me, Sir Alex, what he achieved in the game is incredible."
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