"We are happy, it is the first leg and it will be an intense second game".
It took Jurgen Klopp's men just five minutes to open the scoring as Keita got his second goal in as many games having waited nine months to open his Liverpool account. Porto will try to strike back.
Georginio Wijnaldum dropped to the bench for the visit of the Portuguese side but could also return to play against Maurizio Sarri's men.
On a bitterly cold night at Anfield, Liverpool were well below their best and Porto deserve credit for a determined performance after going two goals down in 26 minutes.
Liverpool did most of the pressing in the second half - Sadio Mane coming closest from long range - but they were unable to find a third that would have all but ended the tie as a contest.
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"We deserved the win 100 per cent and we scored two wonderful goals", said Klopp.
"When we don't play good I am the guy who says we didn't play good, but I don't have that feeling".
"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".
Alisson's left foot denied him at first after he was slid in behind the Reds' defence, before he shot straight at the Brazilian as Liverpool failed to clear a corner and left the striker unmarked in the box.
A Liverpool side led by Souness hammered CSKA Sofia 6-1 en-route to European Cup glory back in 1981, but the tide was turned when they faced the same side a year later and saw their reign as champions of Europe ended in a shock upset. Overall, a really good performance. All of them were really hard-working, and really good football too. "When we attacked them, we caused Liverpool lots of problems".
The graphic above shows how Henderson's average position (number 14) was significantly further up the field against Porto, compared with his last start against Tottenham in the Premier League when he played at the base of Liverpool's midfield.
"The atmosphere in Porto will be really tough for us but this is a result we wanted before the game, now we have it and we have to work with it".