Complex sentence: Luís Diego Arnáez Villegas (born 6 November 1967) is a retired Costa Rican football player who is currently an assistant coach for the Costa Rica national football team.
Split into simpler sentences: Luís Diego Arnáez Villegas (born 6 November 1967) is a retired Costa Rican football player. He is currently an assistant coach for the Costa Rica national football team.