Celtic are closing in on the signing of Croatian midfielder Ljuban Crepulja.
The 22-year-old's club, Croatian top-flight team Slaven Belupo, have revealed the player travelled to Scotland on Tuesday for talks.
Crepulja is a holding midfielder who has made 81 appearances for Slaven in two-and-a-half years, scoring two goals.
Celtic have been missing both Scott Brown and Charlie Mulgrew from their central midfield in recent months, but both are making good progress as they recover from injury.
Ronny Deila made his first signing of the transfer window on Sunday when he signed 24-year-old Denmark central defender Erik Sviatchenko from FC Midtjylland on a four-and-a-half-year deal.
The new signing was not needed on Tuesday as Celtic thrashed Hamilton 8-1 - with Northern Ireland's Michael McGovern in the Accies goal - to extend their lead at the top of the Premiership to six points.
The champions had only scored four goals in their previous five home games and winger Gary Mackay-Steven revealed the fans.
"We wanted to get an early goal and that's important, especially at home," he said. "We managed to do that and we put in a great performance.
"We just took confidence from the early goal and carried it on so it was really enjoyable. We feel we can go on a good run now and hopefully take teams apart like we did against Hamilton. We feel we can do that to anyone on our day."