The Red Devils tried everything to sign Vidal over the summer transfer window, but could not convince the midfield to come to Old Trafford.
However, Real Madrid are also keen to sign the 27-year-old as Carlo Ancelotti attempts to beef up his squad, and Juventus are ready to take advantage of the two-horse race by upping their asking price to a staggering £48million.
The Serie A champions are prepared to let Vidal go after a number of unprofessional incidents, but unfortunately for United, Massimo Allegri is looking to do business with Ancelotti before Van Gaal.
Juventus are keen to sign Real’s wantaway midfielder Sami Khedira, and want to negotiate a swap deal with the Champions League holders, which could see United end with nothing,.