MANCHESTER UNITED are desperate to sign Arturo Vidal before deadline day.

We track how their interest has mounted in the 27-year-old Juventus star
January 13: United are focused on signing Juan Mata, which they eventually do. However, there is already interest in Vidal
July 8: Bayern Munich emerge as possible challengers for the midfielder
July 14: Arsenal inadvertently help United. They sign Alexis Sanchez, who has the same agent as Vidal. He uses his time in England to talk over a move to Old Trafford
July 20: Vidal reportedly puts his house up for sale in Turin
July 23: Liverpool, Manchester United and Real Madrid are revealed as the only three clubs Vidal is interested in joining
July 24: Brendan Rodgers has taken a look at Vidal - but he shelves plans to stun United with a bid.
July 24: United fans order Louis Van Gaal to sign the star man by making a flag to fly during the pre-season tour to America

July 24: Vidal appears to rule out a move to Old Trafford but remains coy over his future
July 29: Then, days later, a u-turn. A 'verbal agreement' is made that will see Vidal join United
July 29: The news stuns Juve boss Massimo Allegri, who reckons his star player is going nowhere
July 30: Juventus legend Alessio Tacchinardi says Vidal will be irreplaceable
August 1: Vidal is claimed to have passed a medical and is now set to complete a move after his agent jetted into England
August 1: United appear to have reserved the No.7 shirt for their £47m addition
August 3: United suffer a blow in their efforts to bring Vidal to Old Trafford as he is named in Juventus' squad for their pre-season tour.

August 3: Giorgio Chiellini reckons team-mate Vidal will stay at Juve.
August 6: Van Gaal's fitness concerns are revealed. The Dutchman is worried about Vidal's knees.
August 7: Starsport exclusively reveal how United want to put Vidal through a medical BEFORE they discuss a fee.
August 7: Reports in Italy claim Vidal has agreed a five-year contract at United.
August 9: United have reportedly earmarked Alex Song as the man they want to sign if their move for Vidal ends in failure.
August 11: Vidal fuels speculation he is set for Old Trafford - by signing a Manchester United shirt.
August 12: Vidal snubs a fan who asked him to sign the jersey of United's bitter rivals Manchester City.
August 12: United are told they have until Friday to agree a deal with Vidal.