Complex sentence: In 1988 he was hit by a bottle while on the pitch and, three years later, he was sanctioned by UEFA for using an unorthodox method of disrupting the concentration of Carlos Valderrama, in a game against Real Valladolid.
Split into simpler sentences: In 1988 he was hit by a bottle while on the pitch. A little later he was sanctioned by UEFA for using an unorthodox method of disrupting the concentration of Carlos Valderrama, in a game against Real Valladolid.