Chelsea boss Frank Lampard is keen on signing West Ham midfielder Declan Rice this summer with the intention to use the England international as a centre-back.
West Ham boss David Moyes has warned the Blues must be willing to spend big to sign the England international.
Moyes said: “Declan is under contract.
“He goes on holidays now as far as I know. Hopefully he is selected for England.
“He will be back in pre-season with us in three weeks. That’s as much as I can tell you.
“Rightly so Declan should have attention because he’s such a good player.
“But he’s not going anywhere unless you get one of those steel vans that have the cash in it. You better bring one of them!”