United finished as runners up in the Premier League in 2017-2018, 19 points behind champions City. The 31-year-old Barcelona forward is also the leading scorer in this season's competition with eight goals.
"In accordance with paragraph 21.01 (b) of the UEFA Champions League regulations, the UEFA administration will determine which matches will be played on Tuesday, which matches on Wednesday".
"We've been on a good run and now it's not squeaky bum time, like the gaffer used to say, but it tightens up".
"But I would do two matches between English teams, which would mean two teams would be in the semi-finals".
Manchester United takes on Wolves in this weekend's FA Cup quarter-final and City are at Swansea. Should Jurgen Klopp negotiate a home clean sheet win over Porto in the first leg, even better for their title odds.
"We're not challenging to win the league this year but we are challenging for the other two trophies".
Lakers' Lonzo Ball (ankle) will miss remainder of the season
It's been initially assumed that Lebron James might be able to transform the Los Angeles Lakers into a championship contender with the help of a few key additions.
Liverpool's drawing of Porto takes the trickiest part of its league run-in and makes it a lot more palatable.
Liverpool, who lost in last year's final to Real Madrid, will host Porto in the first leg on April 9. "They've beat some big hitters - bring on another one".
"I want them to come back as quickly as possible, to get back to the routine", he said.
UEFA have announced just over half (34,000) of the 63,500 capacity at Atletico Madrid's Wanda Metropolitano will be made available for the fans of the two teams who reach the final on June 1.
Barcelona drew Manchester United meaning that current interim manager Ole Gunnar Solskjaer will head back to the Camp Nou where he famously scored the late victor to secure the treble for his club in 1999.
Nine years later the Red Devils again booted out an Italian side, this time Roma, which was followed by a narrow 1-0 aggregate success over Barcelona - thanks to Paul Scholes - and a dramatic penalty shoot-out triumph against Chelsea in the Final.