These are very good odds for me. Celje is playing very good and they just need to win this match to avoid relegation. On the other side, Koper lost 3:0 against Maribor last match where they played more than 60 minutes with one player more. They were playing without any idea in offense and in defense they were leaving too much space to Maribor.
I am expecting Koper will try to hold 0:0 as long as possible. If Celje will score in the first half it can be a 2 or 3 goals difference at the end.