West Ham boss David Moyes insists Lucas Paqueta compares favourably with his Brazil teammate Bruno Guimaraes.
Guimaraes arrives with Newcastle tonight at London stadium.
Moyes said: "Paquetá is a really good player.
"Newcastle have a really good player in Bruno Guimarães as well. But Lucas has improved as he has gone along, but it has not been his ability, [as] it just takes people a little bit of time to get used to it.
"We are still looking for more creativity, things that lead to goals or chances and hopefully we can add that to his already good performances."