Manchester United now see Juventus' Alex Sandro as their primary left-back target for January, as there is a growing belief it could be difficult to prise Danny Rose out of Tottenham Hotspur.

Jose Mourinho is determined to solve a position that has been a problem for a long time at Old Trafford, even allowing for Ashley Young's impressive displays there is a stand-in, and sees it as his main task for the mid-season window.

It had for a long time looked like Rose could be that option, given the has fallen out of favour at Spurs due to injury and the connected issues of a controversial interview about the club's transfer policy at the start of the season.

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United are however wary of dealing with chairman Daniel Levy due to how difficult he can make negotiations, having found a move for Eric Dier in the summer close to a non-starter. Levy would also want at least £50m, given that was the price Kyle Walker went for in the summer.

Mourinho, however, also greatly admires Sandro, who has previously attracted strong interest from Chelsea, and the indications from Juventus so far have been that a deal may be possible.

There was even a belief that the Italian champions might have been prepared to sell him in the summer, only for the club to be "out-manouevred" by the situations of Leo Bonucci and Dani Alves, so they couldn't afford to let another defender go in the short term.

If United do not move for Rose, it is possible that City might, although they are similarly uncertain about the value of spending another £50m on a full-back given they still have the injured Benjamin Mendy to come back.