During his spell with the Blaugrana, he suffered a serious anterior cruciate ligament injury to his right knee that hindered his professional career.

[1] Bernaus made 286 overall appearances whilst competing in the second tier of Spanish football (275 in the league, 11 in the Copa del Rey), also representing CD Toledo, Terrassa FC, Gimnàstic de Tarragona, UD Las Palmas, Getafe CF, Elche CF, Polideportivo Ejido and Girona FC.

His biggest achievement came in the 2003–04 season, when he helped Madrid's Getafe to its first top-flight promotion by playing 33 out of 42 matches;[2] he also suffered, however, five relegations, two of those with Barcelona's reserves.

[3][4] After having appeared for Spain at youth level, Bernaus opted to represent Andorra, his homeland, as a senior.

On 13 October 2004, he entered the minnow footballing nation's history books when he scored the game's only goal against Macedonia in the 2006 FIFA World Cup qualifiers for their first ever competitive win.