Speaking to TNT Sport, Van Dijk said: "Obviously you saw how they celebrated the goal, and they have every right to.
"I think Doucoure in the end wanted to provoke our fans and Curtis didn't think that was the right thing to do and obviosuly you know what happens when there is a tussle.
"I think the ref didn't have the game under control in my opinion ... Both teams have to deal with it. It is what it is. We just need to move on."