Pep Guardiola has rated Sergio Aguero's two-goal performance for Manchester City tonight as the best he has seen from the striker.

Aguero converted a first-half penalty before adding a second goal in the second half as City comfortable accounted for Huddersfield Town 5-1 in the FA Cup fifth-round replay at the Etihad Stadium.

The Argentine also provided an assist from compatriot Pablo Zabaleta while working his socks off for his teammates all around the pitch.

"It's the best performance I've ever seen from Sergio," said Guardiola.

"He scored two goals and created a lot of chances. When he plays at that level, he's unstoppable.

"We are so happy with how he played today."