Terzic has a very broad catalogue

Terzic has used 30 players across Athletic's first 12 matches, rotating heavily to assess his squad after arriving in summer.

Terzic arrived at Athletic Bilbao determined to evaluate as many players as possible, designing a preseason with friendlies against modest Basque clubs. That approach has continued into the official season: he has fielded 30 different players across the club's first 12 competitive matches.

No summer signings arrived, but Gere, Canales and Rincón have established themselves after loan moves, and Johaneko has featured in all but two games. Of the 30 players used, eight have played fewer than 90 minutes.

Padilla appeared only in cup competition, Prados is working back from a serious knee injury, Adama was loaned to West Ham, and Djaló has barely featured after returning from Guinea-Bissau with an infection.

Four of the 30 are academy prospects: Imga, Txus Vizcay, Conde and Selton. The first three have made their Athletic debut under Terzic, with Imga and Vizcay now in regular first-team rotation and Conde and Selton called up for cup ties.

Of all players in Athletic's squad lists, only Monreal has yet to appear, despite being named in matchday squads against Barcelona, Atlético Madrid and Elche in the league and against Prat in the cup.