Pep Guardiola has suggested the doubts about his true managerial ability are correct with a startling admission.
Guardiola is widely considered as one of the greatest managers of all-time with 28 major titles to his name since starting his senior managerial career at FC Barcelona in 2008.
However, critics have often stated the Spaniard has not been tested with teams without major financial backing after stints with the Blaugrana, City and Bayern Munich.
And Guardiola has seemingly agreed with the notion in an interview with Sky Sports when asked whether is the best manager in the world.
"I was," Guardiola said. "What is the best coach in the world? I never felt I am the best, never in my life.
"When I won six titles in a row in Barcelona and won trebles, I never felt that. I won because I had extraordinary players at big clubs.
"There are incredible managers, they don't have these players, they don't have these big clubs. I'm a good manager but not the best. Give me a team that is not like Manchester City, I am not going to win."
He then went on to claim that he may lose his job if the Citizens are dumped out of the UEFA Champions League by Real Madrid.
"I accept it. I want to win the Champions League, I dream and will enjoy the games against Real Madrid, to see what I can do," he explains.
"And this process, the two weeks before, will be the happiest moments of my profession, to imagine what we can do to beat them.
"If we don't beat them, then the chairman will come, or the sporting director, and say 'It's not good enough, we want the Champions League, I'm going to sack you'. Then 'OK, thank you, it was a pleasure.'"