Barcelona defenders Ronald Araujo and Andreas Christensen have both been linked with exits in the summer transfer window.
Araujo could be offloaded to help make room for Joan Garcia and potentially Nico Williams, while Christensen barely played last year due to injury and only has a year left on his contract.
Deco has been quizzed on the situation and made it clear he does not want Araujo to go but did also concede that one defender must leave as they have too many center-backs.
“What we want is to improve the team, not make it worse.