Ronny Deila believes new signing Colin Kazim-Richards can become a leader in dressing room after his deadline day move to Glasgow.

The Turkey international arrives in Scotland with a bad boy reputation after threatening a journalist at his previous club Feyenoord as well as making a homophobic gesture to fans of another of his former teams Brighton.

Scotland assistant and current Motherwell boss, who coached the player at Brighton, once labelled him "impossible to work with" but Deila says his new boy can be a positive influence on the Scottish champions.

"Kazim is an experienced player who has qualities and can be a leader in the group," said the Norwegian, who is unlikely to include Kazim-Richards or fellow new boy Patrick Roberts against Aberdeen on Wednesday.

"He's not the first player I have had with issues. When you have cameras around you all the time, there are always things coming up.

"But I talked a lot with him and he's motivated to play for Celtic. He's going to be a very good signing.

"He is very physical, he is very strong keeping the ball up.

"He has personality and that is important when you have young players. He is used to, at Feyenoord, playing in a team with a lot of young players around him and being a leader in that team.

"He had a fantastic last season for Feyenoord. We think he will suit the style of play here and the league and also make a difference in Europe."