The report from Marca on Monday morning claims that at the very last minute, with Milan seemingly have pulled out of their planned move, Atletico Madrid have agreed a deal valued at €35 million, after their executive Miguel Angel Gil held a meeting with Porto president Pinto da Costa on Sunday.
So certain are the Spanish sports outlet that a deal has been struck, they state: "Jackson, pending the signature, can now be considered an Atletico player."
Jackson Martinez was said to be neither thrilled with the idea of a move to Arsenal, or to Italy and Milan, having expressed a clear preference to play in La Liga.
However, the negotiations with Atletico for the 28-year-old were delayed, following their recent pursuit of Carlos Tevez, who ultimately appears to have opted instead for a return to Argentina and Boca Juniors.
A key factor is also believed to be the interest of Porto in several Atletico players, including Angel Correa, Raul Jimenez and Oliver Torres. The latter spent the 2014-15 campaign on loan with the Portuguese giants, and they're keen to make his move permanent.
Additionally implied by the Spanish reports, is the need for Atletico to close any transfer business as quickly as possible, ahead of a potential FIFA transfer ban. They stand accused of similar breaches of rules regarding the signing of under-aged players, which saw Barcelona receive heavy punishment.