The full-back put pen to paper on the deal at Melwood on Thursday just 18 months after initially arriving from Hull City.
Moments after inking his new terms, Robertson sat down with Liverpoolfc.com at the Reds’ training complex to outline why he was so eager to complete the formalities as quickly as possible.
The Scotland captain also reflected on a whirlwind first 18 months at the club, during which he’s established himself as a regular in Jürgen Klopp’s starting line-up and made 56 appearances to date, as well as detailing his aims for the future.
Watch our exclusive interview with Robertson now, or scroll down to read the transcript in full.