Celtic have already been busy in this transfer window, signing Erik Sviatchenko earlier this month, but now they are targeting a striker.

Portland Timbers forward Fanendo Adi is on the radar of the Scottish champions, although Rubin Kazan, Sporting Libson and a number of other clubs are also monitoring the situation.

Meanwhile, Croatian midfielder Ljuban Crepulja is in Glasgow for talks with Celtic this week, with his club Slaven Belupo confirming that he will spend a few days with the Hoops.

But Ronny Deila's side face some competition for the services of the 22-year-old, with Chievo Verona also interested in him.

In other transfer news, Kilmarnock are keen on Crystal Palace forward Sullay Kaikai, with Gary Locke making an offer to the 20-year-old.

After stints with Cambridge and Crawley last season, Kaikai could now join the Rugby Park side for the second half of the campaign.

And Aston Villa are weighing up a £5 million move for Celtic playmaker Stefan Johansen as they attempt to beat the Premier League drop. It's all in today's Transfer Talk.