Daizen Maeda and Arne Engels both hit doubles while Adam Idah and Nicolas Kuhn notched the other two. But it was another player who earned plaudits from manager Brendan Rodgers for his showing.
Seven of Engels' nine Celtic goals up to this point have been from the spot, and although he has, barring a slight mishap against Young Boys, been clinical from 12 yards, he doesn't want to be known ...