Posing a set-piece threat is an area Norwich City are aware they need to improve upon, with left-back Jamal Lewis pointing to runaway Premier League leaders Liverpool as inspiration.

Grant Hanley's opener during Saturday's 2-1 win at Burnley in the FA Cup was just the second headed goal of the season for the Canaries, with the captain powerfully nodding in a wide free-kick from Mario Vrancic.

Just two teams have scored fewer than City's three goals from set-pieces in the top flight so far this season, with champions-elect Liverpool playing slick football but also registering 11 from set-pieces.

The only team to score more than that is the Canaries' next opponents, Newcastle, with 12.

"Just watching Liverpool week in, week out, just how many goals they get from set-pieces, you see in this league that it can get you about 10 points in a season," Lewis said.

"So definitely it is something that is vital in the Premier League, vital in every game in every league. I think that's maybe something we keep an eye on and try to improve."

Hanley became the first City defender to score at all this season and although Lewis was pleased for his skipper, he wasn't going to let him enjoy the moment without a bit of light-hearted banter.

"Grant is really good at defensive headers but when I see him attack headers, sometimes I don't know where he's aiming for - so to see him hit the target was amazing!" Lewis joked. "It's really good, I'm really happy for him."

The Northern Ireland international, who turned 22 on Saturday, was one of seven players who came into Daniel Farke's starting XI at Turf Moor who is hoping to have given his head coach a selection headache ahead of the trip to St James' Park.

"You've seen a lot of players on the pitch that haven't been playing regularly, so I think you kind of saw a lot of hunger on the pitch," Lewis continued, who has been kept out of the team by Sam Byram recently.

"Sometimes that can work and sometimes it can go the other way, when players are moody that they are not playing week in, week out.

"But it shows the group of players that we've got that even when you're not playing consistently you can put in a performance like that at a top team and get the win."