Craig Burley doesn't believe Group C is among the toughest UCL groups, but the rest of the crew don't agree.
Costa reportedly has an offer in place with Atletico and all that needs to be agreed is the deal between the two clubs.
"If his family is moving [to Madrid] then I do not know", Cerezo told reporters, as covered by Diario AS.
However, he has not featured in any of his side's games so far this season with that trend looking likely to continue until he is sold.
Atletico were unable to sign the striker during the summer months due to a transfer embargo but are believed to be close to an agreement to officially sign Costa when the January transfer window opens for a fee of £53m.
Similarly, reports in Madrid-based newspaper Marca say Chelsea have finally altered their stance - having refused to negotiate Costa's sale unless he returned - and will now sanction a £54m deal. In addition, the move would become the most expensive in Atleti's history. "We tried but we weren't able to score".
Chelsea were reluctant to be held to ransom by Atletico and had tried to offload Costa elsewhere, though his lack of fitness was a barrier - hence why they pleaded with him to return to training in Cobham.
Adriana Garcia is a Valencia-based football writer who covers La Liga for ESPN FC.