Manchester City boss Pep Guardiola has highlighted Raheem Sterling's importance to his team's fortunes.

Sterling hit a hat-trick to move onto 12 goals for the campaign as the Premier League leaders cruised to a 4-0 victory over Norwich City.

He has been Guardiola's most used player during the Catalan's time at the Etihad Stadium and the City boss says his impressive contribution to City's season has proved just how valuable he is.

“I am sure it will be a massive confidence boost for him," he said after the winger's three-goal haul at Carrow Road.

“I have known Raheem for six seasons. I know him perfectly well. This season he was outstanding in goals and assists and his contribution to the team.

“During that period there are highs and lows. It's part of life. Teams are not honeymoons. There are problems and we have to solve them.

“Nobody doubts how important he is. He is showing that. What I want is for all the players to play good.

“If we count the amount games he played since we are together, it is a lot. He was a key player. In the future? I don't know what will happen. The club decides.

“When the club extends contacts, I give my opinion, but the club takes the decision, always."