In 2019, he acquired Argentine citizenship through descent, stating that he wished to honor the memory of his father, who grew up in Mendoza, Argentina.[135]

Borrell speaks Spanish, Catalan, Italian, French and English.[136]

He has been a keen participant in the annual festivity in his native Pobla de Segur descending the Noguera Pallaresa river, in which the stream is rowed down by the partakers as log drivers (raiers).[1][5][137]