Complex sentence: Gilberto Ramírez Sánchez (born June 16,1991 in Mexicali, Baja California, Mexico) is an undefeated Mexican professional boxer in the Middleweight division and is considered the best boxing prospect from Mexico.
Split into simpler sentences: Gilberto Ramírez Sánchez (born June 16,1991 in Mexicali, Baja California, Mexico) is an undefeated Mexican professional boxer. He competes in the Middleweight division and is considered the best boxing prospect from Mexico.