Chelsea manager Jose Mourinho has admitted that the Blues have had an offer for Everton defender John Stones rejected, as per The Daily Mail.

The Premier League champions have star players all over the pitch and as such are not widely expected to do too much business this summer.

The departure of Petr Cech has been nullified by the signing of Asmir Begovic, whir young Brazilian forward Kenedy has also been added to Mourinho’s contingent.

However, it appears that the West London club are thinking about the future and a time when they no longer have John Terry, as a bid for Stones has been placed.

Mourinho has stated that he wants to add a young centre-half to his squad this summer and is well within his right to lodge an offer for the England international defender.

“We made a bid, we can make it, it’s an open market until September 1,” the Blues boss stared.

“We didn’t make an offer on September 2 or in March or two days before we play against Everton. We are making the bid in the period we have to make it, which is the open market.

“So until September 1, every single one of our players can get a bid and we can make bids for other players. While they say we don’t accept this bid, until September 1 we can improve the bid: £1 more, £10 more. We can improve it.

“If one day manager Roberto Martinez or the chairman comes and says: “He’s not for sale, we don’t accept any bid,” then game over. So during this process, it’s clear: we don’t deny we made a bid. It means we are trying to buy.

“We have three [central defenders]. Two are more than 30 years old. We would like to have two under 25, which would give us the next 10 years, but it’s not urgent, it is not something we are desperate for it, because we have three centre-halves, plus Branislav Ivanovic, so we have four.”

With Mourinho’s comments suggesting that Chelsea are ready to offer an increased figure to try and capture Stones, the Toffees could have a job on their hands holding onto the starlet this summer.