Mauricio Pochettino recently described Sigurdsson as the 'perfect player' for him at Spurs, expressing his disappointment that the Iceland international departed for the Liberty Stadium in 2014. He's been among the most influential players for Swansea over the past two and a half seasons, with 22 goals and 17 assists. Arguably on current form, he would get in Tottenham's side ahead of Christian Eriksen. But how about the one player other Premier League club's should rue parting company with? Take a look at our picks for every current Premier League club, based on players they realistically could have kept hold of.
One player each Premier League club should never have sold – foolish decisions?
