Pep Guardiola must be kicking himself as he told Man City not to sign Riyad Mahrez’s perfect £50m replacement

It has been a rarity for Pep Guardiola to make mistakes during his managerial career.

Since dominating English and European football at Manchester City, the Catalan boss has further cemented his reputation as one of the greatest tacticians to have ever graced the game.

But Pep Guardiola is only human and he can have off days as well.

For instance, the former Bayern Munich manager’s decision not to start a defensive midfielder in City’s 1-0 defeat to Chelsea in the Champions League final in…