16) Jackson Martinez (Porto)
Another superb-looking striker who could be available this winter, £30m-rated Porto star Jackson Martinez could earn himself a move to a bigger club, with Arsenal and Liverpool monitoring his situation.
15) Roberto Firmino (Hoffenheim)
A player strongly tipped to be on his way to Manchester United, Hoffenheim forward Roberto Firmino is attracting plenty of interest ahead of the January transfer window thanks to fine highly impressive form in the Bundesliga.