Jose Mourinho is ready to sell one of his defenders after confirming the capture of Julian Belletti from Barcelona had brought his summer spending to a close.

Belletti arrived from Barca for £4m after Chelsea ended their interest in Sevilla's Daniel Alves because of the inflated price tag of more than £25m.

Belletti, 31, will go straight into the squad for today's home game with Portsmouth and while Mourinho insisted there would be no more new faces, he also made it clear he was willing to trim his squad.

Chelsea now have Glen Johnson, Lassana Diarra and Paul Ferreira as support right-backs to Belletti and it seems certain that one of them will leave before the closure of the transfer window.

The favourite to move on is Arsenal target Diarra. He has already indicated his desire to leave and with the success of Mikel John Obi in midfield, Mourinho may be ready to grant his wish.

Mourinho said: ''I want my squad to be just a little bit smaller.

"We have 27 players because Belletti comes in but Arjen Robben goes out, and if we can, we will go down to 26. Our squad is a very balanced one."