Raheem Sterling has explained why he has been “nowhere near my best” since joining Chelsea from Manchester City last summer.

Sterling hit 131 goals for City through 339 appearances, breaking the 20-goal barrier in three separate seasons, but found the target just nine times in 38 outings for Chelsea last season.

Sterling said: “It was a difficult transition period last year. I was raring to go from the off season, looking to get back to the levels I know I can get to, it is as simple as that. It’s about being aggressive.

“A lot of the time it’s back to goal so it was nice to get on the half turn. I’m a player that needs to be driving, action after action.

“If I’m not doing that I’m nowhere near my best, so that’s what I need to keep doing every time I get the ball. I have to turn, drive and be aggressive. That’s what I plan on doing.”