I wonder what he keeps writing down
"It should be 4-1 right now" even though Dortmund had scored twice at that point
1) I think he was grading the players performances mate. Because at one point(I think it's Lallanas fresh air kick), he says something along the lines of "I'm goin to have to give him a minus for that".
2) He meant it should've been 4-1 to Dortmund, not us.