Chelsea manager Frank Lampard challenged Callum Hudson-Odoi to continue improving after his impressive performance against Nottingham Forest on Sunday.

The 19-year-old has faced criticism for some lacklustre performances this season after returning from an Achilles injury in September.

He returned to form with a goal and assist in the 2-0 win over Forest in the FA Cup, but Lampard knows the England international can do better.

"It was a good performance. I was pleased to see him high up the pitch, pleased to see him being aggressive in how he gets at people, which is what he is there for. He gets his goal with a great strike," said Lampard.

"It has been an interesting 12 months for him considering how young he is, when you take that into account. Last year everyone was talking about him for different reasons. He gets a terrible injury, he comes back very early and when he did come back there were issues getting him tip top.

"This was a nice step forward for him. Next time it will be, 'Can you do more?'

"When you are a player of speed and sharpness, when you have an injury like that it can be slightly held back. There is a lot of strength work he needs to do – stuff on the pitch and in the gym now we're getting him towards the point where he has that acceleration.

"As a player he is 19 and he has had that injury so there is a lot more to come from him."