MANCHESTER: Mauricio Pochettino will leave his post as US national team coach to take over at Manchester United, the two sides announced on Friday, with the Argentine replacing Michael Carrick as the Premier League club sits in the relegation zone. Pochettino will lead the United States in their upcoming quarter-final legs against Haiti in the CONCACAF Nations League before joining Manchester United, US Soccer said. "The club has reached an agreement with the US Soccer Federation for Mauricio