The Gunners are not expected to be busy on deadline day as Arsene Wenger heads to Rome to referee a charity game, despite Olivier Giroud being sidelined for up to four months
It was revealed on Sunday that Arsenal were lining up a bid for the Colombia international, but the Liga club have stated they "will not listen" to offers for the frontman.
Castro told reporters: "There aren't bids for Bacca and we are not going to listen them. His salary increase is an internal matter and we are not going to talk about it."
It is understood that Arsenal are not expecting much in the way of transfer business on Monday, as the transfer deadline comes into view, while Arsene Wenger is expected to spend the evening in Rome, refereeing a charity football match.
The Gunners lost Olivier Giroud to injury for up to four months and although there is pressure from supporters of the club to add to their strikeforce, Wenger has repeatedly stated that he is reluctant to panic buy.