Overview
- López scored Barcelona's first, second and fifth goals to complete a hat-trick reported as the first by a Spanish player for the club in the Champions League.
- Marcus Rashford added two goals and Lamine Yamal scored one, with Rashford now on four Champions League goals in three games while on loan from Manchester United.
- Olympiacos briefly climbed back through a 54th-minute Ayoub El Kaabi penalty following a VAR review that detected a handball in the build-up.
- Three minutes later Santiago Hezze received a second yellow card, reducing Olympiacos to 10 men and opening the door for Barcelona to pull away.
- Post-match, López told Movistar he was very happy with the display and turned focus to the Clasico.