Klopp added: "The second goal was brilliant, but he had the cross for Sadio's "goal" as well".
He slipped in an inch-perfect ball between Porto's left-back and centre-back, Alexander-Arnold crossed for Firmino, who passed the ball across the face of goal for Firmino who could not miss.
Astronomers reveal first-ever image of black hole
Astronomers are about to reveal a spectacular landmark image that will mark the first time humanity has ever seen a black hole . But the most important part of this photo is where there is no light.
Georginio Wijnaldum dropped to the bench for the visit of the Portuguese side but could also return to play against Maurizio Sarri's men.
Liverpool rarely threatened the Porto goal in the second half but with a two-goal advantage and no away goals conceded, Klopp will be pleased with the professional performance. The problem was a little bit that in the second-half we gave a few counter-attacks away, then we had to control it a bit more.
However, a fourth clean sheet in five home Champions League games this season means an away goal at the Estadio do Dragao on April 17th will leave Porto needing four to progress.
Once the match had finished, Liverpool fans took to social media to reflect on what they had seen, with many saluting the display of midfielder Keita, a man who so much was expected of, but who has yet to deliver on his potential at Anfield.
Florida Everglades snake hunters capture 5.2-metre Burmese python
Researchers explained in the post that they were able to track the female by tracking radio transmitters placed on male pythons. It was one of these transmitting males that led the preserve's researchers to the impressive female, who weighed 140 pounds.
"Salah was very fortunate not to be sent off for his challenge on Porto's Danilo Pereira, the Liverpool forward comes over the top of the ball and clearly plants his studs onto the shin of his opponent".
Porto only completed 67 percent of passes compared to Liverpool's 83 percent. 2-0 is a really, really good result. This is an extremely well-coached team with talented players all over the pitch, and Moussa Marega has scored in six straight Champions League games this season. "We've taken the first step", he told liverpoolfc.com.
Henderson has played 316 times for Liverpool since joining from Sunderland in 2011 and replaced club legend Steven Gerrard as captain in 2015. "This is the result we wanted before the game".
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The World's First Photo of a Black Hole
The scientists are now processing the data collected by the telescopes and hope to release a photo in the very near future. Astronomers have linked together eight radio observatories around the globe to photograph the heart of galaxy Messier 87 .