After a moment of silence in memory of those who lost their lives at Kanjuruhan Stadium in Indonesia, French referee Clement Turpin peeps his whistle and away we go.
Turpin was in charge of last season's final when Liverpool lost out to Real Madrid in Paris.
Morelos will be looking at tonight as a personal battle against that back four, particularly against one of the best centre-backs in the world in Virgil van Dijk.
I think it's the right call because Alfredo will get under his skin. He'll be looking at him thinking 'who is this guy who isn't giving me a seconds rest?