Complex sentence: Ramírez played in Spain with Real Sociedad and in Mexico with CF Monterrey before returning to Chile in 1997 yo join Universidad Católica where he won a further two league championships.
Split into simpler sentences: Ramírez played in Spain with Real Sociedad and in Mexico with CF Monterrey before returning to Chile in 1997 to join Universidad Católica. At Universidad Católica, he won a further two league championships.