The Scotland international completed a switch to the Anfield outfit from Championship side Hull City after the versatile full-back impressed during his first season in the Premier League.
Robertson was signed to provide competition for Alberto Moreno in what has been a problem position for Jurgen Klopp since the German head coach took over the reins of the Anfield side.
While the 24-year-old required a couple of months to settle at the Merseyside club, Moreno’s injury at the start of December 2017 presented Robertson with the chance to make the left-back his own.
The Scottish defender didn’t look back and he has established himself as Liverpool FC’s first-choice left-back, even starting in the Reds’ 3-1 loss to Real Madrid in the Champions League final in May.
Robertson has carried his form into the current campaign and made four assists in all competitions ahead of the visit of Fulham at Anfield last weekend.
The Liverpool FC defender provided the assist for Xherdan Shaqiri to double the home side’s lead in a 2-0 win over the promoted side at Anfield.
Former Spurs defender Crooks believes Robertson has improved markedly since his switch to the 18-time English champions, highlighting his world-class assist for Shaqiri’s goal.
“This lad has come a long way since his days of playing in front of a few hundred people at Queen’s Park,” Crooks told BBC Sport.
“Robertson has come through the ranks the hard way, also playing for Dundee United and Hull City before joining Liverpool and making a name for himself.
“I’m not entirely sure his left foot is as good as 1970s Liverpool legend Alec Lindsay’s but the cross he provided for Xherdan Shaqiri to score looked pretty special.”
Liverpool FC signed Robertson in an £8m deal from Hull City after Klopp had used former England midfielder James Milner as a makeshift left-back throughout the 2016-17 Premier League season.
Robertson scored one goal and made five assists in 22 appearances in the Premier League last season to prove a real attacking threat pushing forward from left-back.
The Reds will take on Watford at Vicarage Road in their next Premier League fixture on Saturday 24 November.
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