Pep Guardiola has to win the Champions League with Manchester City if wants to fulfill his brief claims Rio Ferdinand.
The Catalan is approaching a decade without winning Europe's top prize having lifted it with Barcelona in 2009 and 2011.
He had several near misses with Bayern Munich and on Saturday night will attempt to take City into their first semi-final during his tenure.
Guardiola has overseen an era of dominance domestically having captured six trophies in the past three seasons.
He has also broken numerous records in the process and remains the only manager to lead a team to a 100-point season.
But Ferdinand claims he has not taken City on like many expected with Champions League glory a must for their owners.
He said: “Listen, with the competitive spirit Guardiola has, the perfectionist he seems to be and the obsessive nature he has, he would not be happy if he walked away from City without winning the Champions League.
“He was probably more successful at Bayern Munich than he has been at City but the fact he didn't win the Champions League in Germany will always taint his time there.
“That is due to the level he has operated at in the past and the standards he set himself at Barcelona. I think it would be the same if this was to happen again at City.
“He has been brought in by their owners specifically to win the Champions League, whether he likes it or not.
“They were winning the Premier League before he arrived. So he hasn’t so far achieved anything at City that nobody else has.
“He can say what he wants about not being judged on the Champions League because he has to protect himself — but he has been brought in to win this tournament.
“I’m not saying he would be unsuccessful if he doesn’t manage to win it. But he would not have done what was on the tin.”
