Four-time Champions League winners Barcelona and French champions Paris Saint Germain suffered few problems in reaching the quarter-finals of this season's competition on Wednesday.
Barcelona -- who had come into their game on the back of some poor league form -- beat Manchester City, who had Pablo Zabaleta sent off, 2-1 for a 4-1 aggregate victory.
Lionel Messi opened the scoring for Barca with his eighth goal of the campaign before Vincent Kompany levelled just before the final whistle, but there was still time for Dani Alves to strike the winner as Barcelona qualified for their seventh successive quarter-finals.
PSG, who Barcelona beat in last season's quarter-finals, kept alive their hopes of becoming only the second French side to win the trophy -- after Marseille in 1993 -- with a 2-1 win over German outfit Bayer Leverkusen for a 6-1 aggregate win.
Goals by Marquinhos and Ezequiel Lavezzi cancelled out Sidney Sam's sixth minute opener to give Laurent Blanc's side their sixth successive win in all competitions.
Leverkusen -- who came into the match on the back of a run of five defeats and one draw in their last six games -- missed a penalty through captain Simon Rolfes and, to round off a miserable experience, also ended the match with just 10 men as Emre Can was sent off for s second bookable offence.
On Tuesday holders Bayern Munich completed a 3-1 aggregate win over Arsenal with a 1-1 draw at home while Atletico Madrid's 4-1 success against visitors AC Milan ensured a 5-1 overall scoreline.