2) Marco Reus (Borussia Dortmund)
Possibly available for around £20m, Borussia Dortmund forward Marco Reus is on the agenda for United as Juan Mata looks the most likely to be on his way out of the club this winter. Juventus and Real Madrid are tracking the Spanish playmaker and could snap him up for around £24m, with Reus an ideal replacement and probably an upgrade on the former Chelsea man on current form.