For arguably the first time this season, Manchester City have been in the headlines for all the wrong reasons.

On Monday evening, they were stunned in the FA Cup fifth round by Wigan Athletic, with the Latics claiming one of the most famous giant-killings in recent times.

Will Grigg's 79th-minute goal capitalised on ten-man City, who had Fabian Delph sent off shortly before half-time and the reaction from Pep Guardiola to the incident sparked some controversy.

In the aftermath, Guardiola, Wigan boss Paul Cook and Peter Reid all played down the tunnel fracas, but it certainly didn't put the City manager in the best light for neutral fans.

Then, Sergio Aguero was caught up in a horrible incident with a Wigan fan, with the Argentine being spat and sworn at before defending himself. Thankfully, the FA saw fit not to charge him.

Not exactly the best week of the season for the Premier League champions in waiting.

Guardiola's attitude to losing has sparked debate this season, with his post-match comment on Wigan having won with only 'one shot on target' certainly adding fuel to that fire.

He has his critics, but the respected voice of Peter Crouch has raised a crucial point about his sulking when on the losing side.

Writing in his Daily Mail column, Crouch explains why this side to his mentality proves he is among the managerial elite.

"First of all, credit to Wigan. They showed a few teams — including ourselves — how to play against Manchester City.

"They defended magnificently and took their one chance. That wasn’t an easy opportunity for Will Grigg but he showed great composure to finish. But the reaction of Pep Guardiola to the game, including when he went berserk in the tunnel at half-time, confirmed something else.

"It is impossible to be a top manager without being a bad loser.

"Whether it has been Sir Alex Ferguson, Jose Mourinho, Arsene Wenger or Rafa Benitez, they have shared a common trait. After every important defeat, whether it is a refereeing decision or whatever, something else has been to blame for their team’s downfall."

The drive to win and passion for success means the greats will never be ones to accept defeat with grace.

Be prepared for some more salty reactions from Pep in the future.