Manchester City will make an opening £25m offer for Arsenal attacker Alexis Sanchez.

The Mirror says City are set to perform a dramatic U-turn over Sanchez with a £25m bid that will force them to put the brakes on their efforts to land Real Sociedad defender Inigo Martinez.

City boss Pep Guardiola saw City's quest for the Quadruple gather more momentum yesterday with a 4-1 FA Cup victory over Burnley at the Etihad.

And that is set spark to an opening gambit for Arsenal for Chilean contract rebel Sanchez as City look to bolster an attack that has been weakened by a knee injury to striker Gabriel Jesus.

However, a successful move for the 29-year-old would see them ditch their plan to trigger the £28.5million buy-out clause in Martinez's contract at Sociedad due to Champions League regulations.

Both Sanchez and Martinez have played in the Europa League this season.

And while clubs through to the last 16 of the Champions League are allowed to make three changes to the 25-man squads submitted to UEFA in September – they can only add one player who has appeared in the Europa League.