Cristiano Ronaldo and Karim Benzema are due to return to the Madrid fold very soon, but Zidane admitted that he has a lot of thinking to do after Asensio and Morata impressed as part of a front three with Gareth Bale.
Asensio scored Madrid's second goal against Sociedad, adding to his strike in the European Super Cup. While Morata didn't score, the Spaniard put in an impressive performance and this has left Zidane with a selection headache.
"I have to make decisions," the Frenchman said after the match.
"I chose Asensio, who did well and scored a goal, but the others have also played well.
"It is difficult to choose the starting 11, my head hurts when I have to do it".
Who do you think should start up front for Real Madrid when Ronaldo and Benzema return?