Bayern down 10-man Arsenal
Toni Kroos and Thomas Mueller each scored as Bayern Munich beat Arsenal 2-0 on Wednesday.
LONDON - Bayern Munich and Atletico Madrid made it four away wins from the opening four Champions League last-16 first leg matches when they triumphed at Arsenal and AC Milan on Wednesday.
Holders Bayern survived an early battering to beat 10-man Arsenal 2-0 on a night of high drama as both teams missed penalties and home goalkeeper Wojciech Szczesny was sent off.
Toni Kroos opened the scoring in London for Pep Guardiola's side when he curled a stunning right-foot shot into the top corner in the 54th minute.
Second-half substitute Thomas Mueller headed the second goal for Bayern in the 88th minute following a cross from Philipp Lahm.
A year to the day after the Germans beat Arsenal 3-1 at the Emirates Stadium in their last-16 first leg tie, Bayern handed out another beating to Arsene Wenger's men at the same stage of the competition.
Bayern's victory came 24 hours after Barcelona inflicted a 2-0 home defeat on Manchester City, making it unlikely that two of England's dominant clubs will advance much further this season.
Arsenal took the game to their opponents and, certainly until Szczesny's sending-off, gave as good as they got.
"The referee made a decision that basically killed the game," Wenger told reporters. "I think our keeper went in for the ball, he touched Robben who made more of it (than he should) and I told Robben that.
"It isn't over because we will fight until the end. Last year we lost here and won there and we have to try and do that again."
Guardiola, who took over from Jupp Heynckes as Bayern coach in the close season, said his team were somewhat fortunate.
"We were lucky," said the Spaniard. "Our keeper Manuel Neuer, the best in the world, showed his qualities.
"After that we played better and started dominating the game and in the end we deserved to win it."
An incident-packed first half yielded two missed penalties and a sending-off.
Bayern have now scored in 51 consecutive matches since Arsenal beat them last year and on this form look capable of becoming the first team to retain the trophy since the Champions League format began in 1992-93.
At the San Siro, striker Diego Costa secured victory for Atletico when his powerful header nestled in the net with seven minutes to go.
The other four first-leg ties will be staged next week.