The Juventus midfielder has been heavily linked with a £42 million move to the Old Trafford outfit throughout the transfer window, with new boss Louis van Gaal keen to bolster his midfield ahead of the new season.
However, Liverpool are believed to be keen to hijack the deal, in the hope that the lure of European football next season will give them an advantage over their biggest rivals in the pursuit of the 27-year-old.
Whilst Vidal is one of the hottest properties in Europe right now, money would not be an issue for either Manchester United or Liverpool, with Van Gaal having been told he can break the bank to sign the right players, whilst their rivals have £75 million from the Suarez sale to spend.
However, the Chilean, who impressed in the 2014 World Cup, dealt a blow to Manchester United when he recently stated that he would not go to Manchester, although he admitted to uncertainty over his future with Juventus, paving the way for a potential move to Merseyside.
Despite their recent domination of the Serie A, the Turin based clubs are undergoing problems of their own currently, following the unexpected departure of former manager Antonio Conte, and it is believed that Vidal has not yet met with new manager Massimiliano Allegri.
As well as this, Juventus director Pavel Nedved has admitted that whilst they do not wish to sell Vidal, a "high bid" would force them into considering all options. This uncertainty could plausibly be a factor in the energetic midfielder's willingness to consider his own options.
If Liverpool were successful in their pursuit of Vidal, it would be a huge blow to Manchester United, not only in terms of squad strength, but also in terms of their ability to lure top players to Old Trafford following a dismal 2013-14 season.
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