Asensio's two stunning goals in his first two competitive games
He netted his first goal in the UEFA Super Cup, whilst his second was a chipped finish at Anoeta.
The Welshman opened and rounded off the scoring as Real Madrid began the La Liga campaign with victory in San Sebastian.
Zidane's team welcome the Yellow Submarine to the Santiago Bernabéu in the fifth round of games in the league.
The new Whites' player underwent medical tests at the Sanitas La Moraleja University Hospital.
The Whites beat Sevilla 3-2 in extra time with goals from Asensio, Ramos and Carvajal.
Realmadrid TV starts a new era. In HD, live on digital TV in Spain.