West Ham boss David Moyes is wary of relying too much on Declan Rice.

Handed the captain's armband by Moyes in the absence of Mark Noble, Rice has been pivotal to the Hammers' impressive start to the campaign and he excelled once more in Sunday's 1-0 win at Sheffield United.

"He is such an improved player," said Moyes. "I really think he is doing a great job as a player and we are building up hope that he will be an outstanding captain.

"The role, his responsibility he takes on the pitch because of his young age, his leadership qualities will build. He has learned from Harry Kane and Mark Noble.

"My biggest concern - and I know he is young - would be that I don't want us to rely too heavily on him."