Complex sentence: Diego Alfonso Martínez Balderas (born February 15,1981 in Mexico City, Mexico), is a football defender who plays for San Luis F.C. on loan from Chivas de Guadalajara in the Primera Division de Mexico.
Split into simpler sentences: Diego Alfonso Martínez Balderas (born February 15,1981 in Mexico City, Mexico), is a football defender. He plays for San Luis F.C. on loan from Chivas de Guadalajara in the Primera Division de Mexico.