Chelsea captain Cesar Azpilicueta has been impressed by new teammate Mykhaylo Mudryk.
The 100m signing made his debut in Saturday's 0-0 draw at Liverpool.
Azpilicueta said, Mudryk has shown that he is a goal-oriented guy.
"He is very ambitious in football. He had half an hour at Anfield, which is not the easiest match to make a debut. But, as it seemed to me, Mykhaylo showed himself perfectly.
"It's nice to see his energy. I think he will be an important player for us."