Hakim Ziyech insists Chelsea have not yet seen the best of him.

The Morocco international scored the decisive goal in Tuesday's 1-0 win over Malmo, which puts Chelsea close to reaching the Champions League knockout stages.

Asked if the club had seen his best form, Ziyech replied: "No. I know what I can do and where my highest level is.

"I had a tough time with injuries and finding my level again. I have struggled to get into rhythm again but you have to work hard for it."

And when quizzed if the goal was important for him, Ziyech added: "Yeah of course.

"I am trying to be improtant for the team with goals and assists. I have had some hard times behind me, I haven't really recovered fully from it.

"I work every day hard on it. I always believed in myself and things what I can do on the pitch."