Alexis Sanchez – the man Arsenal believe can fire them to the Barclays Premier League title – has sealed his £30million move from Barcelona.

The Chile superstar, who cut short his holiday to finalise the transfer in London, completed a medical and agreed a four-year contract – with the option of a further 12 months – worth up to £140,000-per-week. The package will put him on a par with current top earner Mesut Ozil.

‘I’m so happy to be joining Arsenal, a club which has a great manager, a fantastic squad of players, huge support around the world and a great stadium in London,’ said the 25-year-old.

‘I’m looking forward to meeting my new team-mates and to be playing for Arsenal in the Premier League and Champions League.

‘I will give my best to Arsenal and want to make all the supporters happy.’

The deal paves the way for Liverpool’s Luis Suarez to replace him at the Nou Camp, with a sum of  £75m touted for the Uruguayan striker.

Ever since Arsene Wenger discovered Sanchez was available, the Chile international has been his No 1 summer transfer target.

And Wenger was purring after his first signing of the summer, adding: ‘As many people have seen during the World Cup this summer, Alexis is a fantastic footballer and we are delighted that he is joining us at Arsenal.