Sola played sparingly for the "Lions", remaining an unused substitute as they lost the 2015 final of the Copa del Rey to FC Barcelona. Against the same opponent, in that year's Supercopa de España, he came in the 80th minute of the second leg at the Camp Nou and, within seven minutes was given a red card for a foul on Javier Mascherano; his team nonetheless won 5–1 on aggregate for his first major honour.