PEPE, HERRERA RETURN
Pepe and Hector Herrera both return to the Porto starting XI after missing the first leg through suspension.
Moussa Marega, who was ill ahead of the game last week, leads the line again.
There’s a surprise change for Liverpool as Divock Origi makes the starting XI in place of Roberto Firmino, who drops to the bench.
Defender Joe Gomez is also on the bench, having not played since December 5 due to injury.
While Liverpool are in Porto tonight, their Premier League title rivals Manchester City host Tottenham in the second leg of their quarter-final.
Spurs travel to the Etihad, where they play again in the league on Saturday, with a 1-0 advantage.