Complex sentence: Mauricio Roberto Pochettino Trossero (born 2 March 1972) is an Argentine retired footballer of Italian ancestry, who played as a central defender, and the current manager of Southampton.
Split into simpler sentences: Mauricio Roberto Pochettino Trossero (born 2 March 1972) is a retired Argentine footballer of Italian ancestry. He played as a central defender, and the current manager of Southampton.