Arsenal 0-0 CSKA Moscow: Arsenal start brightly and Gunners midfielder Tomas Rosicky tries his luck with an early shot

Cesc Fabregas looks certain to open the scoring for Arsenal after cleverly rounding CSKA goalkeeper Igor Akinfeev

But the Spanish midfielder somehow manages to miss, shooting into the side netting with the goal at his mercy

Rosicky squanders an even better chance when he misses from four yards out after being teed up by Thierry Henry

Robin van Persie is also guilty of an astonishing miss - he fails to connect from close-range after more good work from Henry

Yet another golden chance goes begging when van Persie heads substitute Theo Walcott's cross wide of the target

The match stats displayed on the electronic scoreboard show how wasteful in front of goal the north London side have been

FC Copenhagen 1-0 Man Utd: Tobias Linderoth of Copenhagen tackles Michael Carrick during a quiet first half in Denmark

Wayne Rooney is sent crashing to the ground by a thunderous challenge from Copenhagen goalkeeper Jesper Christiansen

Former Aston Villa striker Marcus Allback pokes in the winner after 73 minutes to condemn United to a shock defeat

Cristiano Ronaldo's despair is clear as United pay the price for making six changes to the team that beat Bolton on Saturday

But Christiansen and his team-mates can celebrate a famous victory - Copenhagan's first in the Champions League proper

Benfica 3-0 Celtic: In Lisbon, Celtic make a nightmare start as Gary Caldwell's 10th-minute own goal puts Benfica ahead

Worse follows for Celtic 11 minutes later when Numo Gomes pounces on Caldwell's misplaced header to make it 2-0

Bhoys boss Gordon Strachan urges his players on from the touchline in an attempt to steady the ship

Celtic try to find a way back into the match but striker Kenny Miller is thwarted by Benfica goalkeeper Quim Silva

And Celtic's fate is sealed when Andrei Karyaka scores Benfica's third goal with 14 minutes of the game remaining