Everton are ready to offer youngster Jack Rodwell a long-term contract.
Rodwell has been offered a five-year deal at Everton, and according to the Daily Express, negotiations are now at an advanced stage
While Rodwell's preferred position is midfield Moyes believes he has a potential centre back on his hands who could go on to become as good as current Manchester United and England star Rio Ferdinand.
Moyes said: "I don't know where Rio started his career but I'm sure he played in midfield for a spell.
"I think Jack Rodwell was outstanding again and he's a good boy who wants to keep improving.
"He's got a great manner about him and is one of those players clubs love to have. I think he has a lot of similar qualities to Rio and could go on to become a centre back like him in the future."