It was a night to forget for Celtic last night in more ways than one.

The Scottish champions lost 3-1 to Norweigan side Molde last night in the Europa League. Kris Commons scored Celtic's goal and was substituted with 25 minutes left when Celtic were two goals down. 

The television cameras caught his reaction when substituted, as he seems to become involved in an argument with Celtic manager Ronny Deila. The manager was unhappy with Common's reaction and called it unacceptable.

"We are a team. I understand that players can be disappointed at being taken off, but to show it in that way, it's not how we want to have it in Celtic. We are one team and it's not about one player. It's very disrespectful to everyone else. That's unacceptable."