The Brazilian was played at the back and shone in the 2-0 win.
“Outstanding," the Dutchman told Liverpoolfc.com of Fabinho, who topped his side's totals for tackles (four), interceptions (four) and possession gains (12) on the day.
“I just told him as well I think he was Man of the Match. To keep out a striker like [Timo] Werner and don't let him score, overall he was outstanding.
“Everyone knows how good he is but it shows also that we need everyone. We are a bit unlucky with the injuries now but we'll need everyone back because it's such a long season."
Van Dijk added: “It was a good performance overall. It's not nice to give a penalty away and it was bit unlucky from Thiago [Alcantara], I think. But overall we dominated.
“Obviously the red card helps a little bit, we can't deny that, but even before that we created moments of danger and we were very concentrated and very ready to get the good result."