5. Arturo Vidal
No in-depth look at viable Manchester United transfer targets would be complete without mentioning Arturo Vidal, a Chilean maestro who impressed Van Gaal hugely at the World Cup.
No matter how many times Juventus make it clear their midfield talisman is not for sale the rumours won't go away, which gives you an indication of just how highly United rate one of the world's premier box-to-box midfielders.
This transfer ship has surely sailed though, with United moving on to sign a player in Angel di Maria who is at his very best driving forward from a central position.
Juve had a golden opportunity to cash in on Vidal last summer and didn't take it, so with concerns over a persistent knee problem still lingering United would be mad to go back in with a big bid in January, and Woodward knows it.