Mauricio Pochettino is preparing his United States men's national team squad for the Concacaf Nations League semifinals, though he isn't naïve to how quickly the world of soccer can change.This isn't Pochettino's first competitive game in charge,

Mauricio Pochettino was sacked as Tottenham manager in November 2019 after five and a half years in charge - and has since been linked with a return to the role

The Argentine has worked at Paris Saint-Germain and Chelsea since leaving Spurs but revealed he still maintains a positive relationship with chairman Daniel Levy. Tottenham are currently 14th in the Premier League under Ange Postecoglou and are heading for their lowest finish since 2008.