Champions League wrap: Napoli suffer late surprise but Barca breeze through City test

Lionel Messi and Mesut Ozil hit hat-tricks tonight.

Lionel Messi hit a hat-trick as Barcelona thrashed Manchester City 4-0 at the Nou Camp to seal a nightmare return for former boss Pep Guardiola.

Guardiola watched his side crumble in their Champions League Group C clash after the 53rd-minute sending-off of another former Barcelona star, keeper Claudio Bravo, for handling outside his box.