Headbutting a teammate in Ukrainian football

The Laws of the Game cover lots of topics you think they might not happen in a football match. So is headbutting a teammate. This might be rare, but it happened in Ukraine this week.

Volodymyr Lysenko from football club Hoverla Uzhhorod in Ukraine was angry at his teammate Mirko Raicevic and gives him a headbutt. He gets a red card for it by the referee. The face of their manager says enough. Check out the video below.

In this situation the ball was out of play. A LATG question for you: How should play restart if the ball was in play at the moment a player headbutts a teammate?