He would only be third choice during that period, and his official debut occurred on 1 October 2005 in a 3–2 away win over Real Madrid Castilla;[4] his second league game was also against that opponent, five months later (1–0 home victory).

[6] He had been signed to a two-year deal with Valladolid keeping two re-buy options on the player,[7] and conceded just 28 goals during the campaign, only trailing CD Castellón's Carlos Sánchez in the Ricardo Zamora Trophy race.

[9] However, injuries to Getafe CF's keepers, Argentines Roberto Abbondanzieri (a couple of weeks) and Oscar Ustari (eight months) prompted a loan request by the Madrid side, which was accepted.

[11] From January 2009 onwards, as Abbondanzieri returned to Boca Juniors, Jacobo was reinstated as starter, first appearing on the 25th in a 5–1 home win against Sporting de Gijón.

In July 2011, after a failed transfer to Celtic – the Scottish team had already shown interest in the player the previous summer[14]– Jacobo joined several compatriots at Asteras Tripolis F.C.

[16] On 21 April 2012, after the Super League season was over, Jacobo was released by Asteras supposedly to move to Everton in England,[17] and had subsequent trials in the country with Charlton Athletic[18] and Middlesbrough in the ensuing summer.