AFP, Paris :
Bayern Munich got the better of Barcelona as Robert Lewandowski returned to face his former club on Tuesday, while a late Joel Matip goal allowed Liverpool to beat Ajax and get their Champions League campaign up and running.
There was also a surprise defeat for Tottenham Hotspur at Sporting Lisbon, and Atletico Madrid were beaten on their trip to play Bayer Leverkusen.
Both Spanish visitors to Germany came away on the losing side, with Barcelona going down 2-0 at the Allianz Arena in Group C as Lewandowski came back to the club he left in the summer after eight prolific seasons in Bavaria.
Leroy Sane burst through four minutes later to make it 2-0 as Julian Nagelsmann’s Bayern made it two wins out of two in the group.
Barcelona next face Inter Milan, who got their first points with a 2-0 win away to Plzen in the Czech Republic.
Liverpool got off to a disastrous start in Group A when they lost 4-1 to Napoli in Italy, but they bounced back from that to beat Ajax 2-1 at Anfield.
Mohamed Salah shook off a poor run of form to put Jurgen Klopp’s side ahead in the 17th minute, only for the Dutch champions to equalise before the half-hour courtesy of an emphatic finish from their thrilling Ghanaian talent Mohammed Kudus.
Liverpool were heading for a third game without a win in all competitions until Matip rose in front of the Kop to head in from a corner in the 89th minute, the ball crossing the line before it could be cleared out..
Meanwhile Antonio Conte’s Spurs slumped to a 2-0 defeat against Sporting in Portugal in Group D, with the home side scoring both goals late on at the Jose Alvalade stadium.
It looked like the English side would escape with a point after Hugo Lloris produced a stunning late save to deny Pedro Porro.
But Paulinho headed in from the resulting 90th-minute corner, and Brazilian Arthur Gomes came off the bench to make it 2-0 with a superb solo strike in injury time.
Sporting top the group with six points, while Eintracht Frankfurt joined Spurs on three points thanks to a 1-0 win in Marseille, with Jesper Lindstrom scoring in the first half.
Leverkusen claimed their first points in Group B as they beat Atletico 2-0 with two late goals, Robert Andrich and Moussa Diaby both finding the net.
Belgian champions Club Brugge top the section with six points after a stunning 4-0 win at FC Porto.
