Mauricio Roberto Pochettino Trossero (born 2 March 1972), also known mononymously by his nickname Poch, is an Argentine professional football manager and former player who is the head coach of the United States men's national team. Pochettino played as a centre back and began his career in 1989 with Primera División club Newell's Old Boys, winning a league title and finishing as runner-up in the 1992 Copa Libertadores. In 1994, he transferred to newly promoted La Liga club Espanyol, helping establish their top-flight status and winning the 2000 Copa del Rey, their first trophy in 60 years.
https://en.wikipedia.org/wiki/Mauricio_Pochettino