On 20 June of that year, at just 17, he made his senior debut, playing 32 minutes in a 1–0 away loss against SD Eibar after having come on as a substitute for Nebojša Marinković.
[1] In 2011–12, with the club still in the Segunda División, Juste was promoted to the main squad – after spending several years with farm team CF Pobla de Mafumet – after an injury crisis,[2] and started the first match of the season on 28 August, against Real Valladolid.
[3] In late June 2012, after Nàstic suffered relegation, Juste returned to his first club Barcelona, signing a two-year contract and being assigned to the reserves.
[5] On 6 August 2012, Gimnàstic and Barça reached an agreement for Juste,[6] and he agreed to a three-year deal with a €12 million buyout clause.
[7] He picked up an injury in mid-August,[8] only returning on 8 January 2013;[9] he was again downed by physical problems shortly after, this time in the knee, being sidelined for the rest of the campaign.