 Complete the following phrase:  After retiring as a player, Pochettino began his managerial career at Espanyol in 2009. He left the club in 2012 after poor results and ficial disputes. In 2013, he was appointed at Premier League club Southampton, leading them to an eighth-place finish in the 201314 season  equalling their highest finish in the Premier League. He then signed for Tottenham Hotspur in 2014, finishing as league runner-up in the 201617 season and UEFA Champions League runner-up in 