Sergio Aguero and Moussa Marega both failed to add to their goal tallies on Tuesday night, as the Champions League quarter-finals kicked off.
Sergio Aguero missed from the penalty spot, after Danny Rose was adjudged to have handled the ball in the area, before Son Heung-Min slotted in the winner.
Marega barely had a sniff, as Liverpool beat Porto 2-0 at Anfield.
Wednesday will see other top scorers like Lionel Messi, Dusan Tadic and Cristiano Ronaldo in action.
UEFA Champions League leading scorers so far:
8 goals: Lionel Messi (Barcelona) and Lewandowski (Bayern Munich)
6 goals: Dusan Tadic (Ajax) and Moussa Marega (FC Porto)
5 goals: Sergio Aguero (Manchester City), Paulo Dybala (Juventus), Dzeko (Roma), Harry Kane (Tottenham), Kramaric (Hoffenheim), Neymar (PSG)
4 goals: Karim Benzema (Real Madrid), Cristiano Ronaldo (Juventus), Gabriel Jesus (Manchester City), Antonio Griezmann (Atletico Madrid), Guerreiro (Borussia Dortmund), Icardi (Inter Milan), Kylian Mbappe (Paris SG), Leroy Sane (Manchester City)
3 goals: Manuel Corona (FC Porto) and Gareth Bale (Real Madrid)