Keita was lively throughout the game as he played a number of excellent passes and was involved in the buildup to Firminho's goal.
"We still have a lot of work to do".
The intensity and high tempo imposed by Klopp's side at times suffocates their opponents and it's hard to face Liverpool, especially at Anfield.
With a month still to go, and plenty to play for, there could yet be a hero we have forgotten, but just as the players have made their picks for the PFA Team of the Year, so too have we at Eurosport.
"Obviously we know it's going to be a tough game and to score two good goals was very important but the clean sheet was the most important thing", said the Netherlands captain.
That goal then allowed Liverpool to go for more while also playing with a bit of patience, and it forced Porto to defend a bit more before it got out of hand.
Salah might count himself fortunate to still be available for the second leg in Porto on April 17, after escaping punishment for a studs-up tackle on the shin of Danilo in the final minutes.
With the away-goals rule, by which the Portuguese side beat Roma in the previous round, the Reds will be grateful they are 2-0 up rather than 3-1 or 4-2 ahead, which might have reflected a slightly chaotic match more accurately.
"The problem was a little bit in the second half, we gave one or two counter-attacks away and then we had to control it again a bit more".
What makes this record at home even more impressive is the fact that Liverpool have played Paris Saint-Germain, Manchester City, Manchester United, Bayern Munich, Borussia Dortmund, Roma, Napoli and Porto at Anfield and beaten all but Bayern Munich at their fortress. We didn't use the right wing in the same way we did in the first half. Two-nil is a really, really good result, I would probably have taken that before the game and I'll take it now. But, in the second half, we responded very well. But the 90 minutes are over and we've got another 90 minutes at the Dragao. Neither team is in the best form, but they should both up their games for this Basque derby, but I'm backing Eibar to have the edge over La Real.
"Hendo is a brilliant player", Klopp said. "They must feel - the players, Jurgen, the fans - that they'll go there and score". It never materialised and Klopp claimed the tie is far from over before next Wednesday's return at Estádio do Dragão.