Making his Champions League debut, Robertson was irrepressible on the left-hand side of the Reds' back four as they carved out a huge first-leg lead in the sides' last-16 tie.
Fans and pundits alike have paid tribute to the Scot in the aftermath of his brilliant showing in Portugal - and the quality of his contribution was not lost on the manager, either.
Klopp told Liverpoolfc.com: "It was really good. The whole package, offensively and defensively, was really good. I would say it was his best game.
"We didn't speak before the game about his debut, we handled it like business as usual, and he did really well.