Champions League: Manchester City cruises on the back of sensational Sergio Aguero hat trick – In pictures

Manchester City's team poses prior the match. (AFP)

Manchester City manager Pep Guardiola and Steaua Bucharest coach Laurentiu Reghecampf before the game. (Reuters)

Sergio Aguero of Manchester City vies with Jugurtha Hamroun. (AFP)

Manchester City's Nicolas Otamendi, left, and Steaua's Bojan Golubovic, right. (EPA)

Raheem Sterling vies for the ball with Steaua Bucharest's Jugurtha Hamroun. (AFP)

Manchester City's Fernandinho vies for the ball with Steaua Bucharest's Jugurtha Hamroun. (AFP)

Manchester City's Sergio Aguero has his penalty saved by Steaua Bucharest's Florin Nita. (Reuters)

Raheem Sterling vies for the ball with Steaua Bucharest defender Alin Tosca. (AFP)

Manchester City's Argentinian striker Sergio Aguero celebrates scoring a goal during the UEFA Champions league first leg play-off football match between Steaua Bucharest and Manchester City at the National Arena stadium in Bucharest on August 16, 2016. (AFP)

Pep Guardiola. (EPA)

Sergio Aguero (L) of Manchester City vies with Jugurtha Hamroun. (AFP)

Sergio Aguero (down) reacts after scoring a hat trick. (EPA)

Kevin Jeffers