BBC Sports Online
Liverpool and Chelsea will renew their Champions League rivalry after being drawn together in next month's Champions League quarter-finals.
It is the fifth successive year the two sides have met in Europe, with Chelsea triumphing in their semi-final in 2008.
Holders Manchester United take on FC Porto and Arsenal play Villarreal, with the winners meeting in the semi-finals.
Bayern Munich meet Barcelona in the other tie. The first legs are on 7/8 April, and the return on 14/15 April.
Liverpool's second leg will not be on 15 April as they asked Uefa to avoid that date because it is the 20th anniversary of the Hillsborough tragedy.
The semi-finals take place on 28/29 April and 5/6 May and the final will be played on Wednesday 27 May at the Stadio Olimpico in Rome.
It is the second successive year that four English teams are in the last eight of the competition.
606: DEBATE
I can't believe we've drawn Chelsea again - and, as usual, United fluke the easiest route to the final
lfcred1968
Although they were beaten by Chelsea last year, Liverpool reached the 2005 and 2007 finals at the expense of the Stamford Bridge club.
It is also a reunion of sorts for Porto and United. The Portuguese club beat United on their way to winning the tournament in 2004, when then Porto boss Jose Mourinho charged up the Old Trafford touchline in delight after a 90th-minute Costinha goal took the Portuguese side through.
And Arsenal's tie with Villarreal is a rematch of their 2006 semi-final, which the Gunners won 1-0 on aggregate.
United beat Chelsea on penalties in last year's final and the draw means another all-English final remains a possibility.