Robertson's fine performances for Jürgen Klopp's side throughout 2018-19 were recognised with inclusions in the PFA Premier League Team of the Year and UEFA's Champions League squad of the season.
And former Reds defender Enrique declared his admiration to the current occupant of his old position at the team's celebrations in Madrid following their victory over Tottenham Hotspur.
"I said to him after the game at the party, for me, he has been the best left-back in the world this year," the Spaniard told Liverpoolfc.com.
"Jordi Alba has been good as well but he [Robertson] has been unbelievable.