Arsenal 0-0 AC Milan: Gunners boss Arsene Wenger knows his side face a stern test against the holders

Arsenal lose Kolo Toure early on as he picks up a leg injury - Philippe Senderos is then introduced as a replacement

Emmanuel Adebayor is used as Arsenal's target man but is thwarted on a number of occasions by Alessandro Nesta

Adebayor has a chance to win it for Arsenal at the death but his header from Theo Walcott's cross hits the crossbar

Celtic 2-3 Barcelona: Parkhead erupts as Jan Vennegoor of Hesselink's superb diving header finds the Barcelona net

Barcelona equalise a couple of minutes later as Lionel Messi exchanges passes with Ronaldinho before finding the net

Celtic reclaim the lead in the 38th minute as Barry Robson sends a looping header over the stranded Victor Valdes

Thierry Henry silences the masses after curling a delightful shot that leaves Artur Boruc helpless in the Celtic goal

Celtic's players are left stunned as Messi scores his second and the third for the Catalans in the 79th minute

Lyon 1-1 Manchester United: Cristiano Ronaldo launches an attack for the visitors in the cagey encounter in France

Wayne Rooney has the best chance to break the deadlock for the visitors but finds his effort saved by Gregory Coupet's legs

Karim Benzema scores for Lyon in the 54th minute - thumping a vicious shot into the right-hand corner of the net

Manchester United manage to score a crucial away goal as Carlos Tevez pounces to score in the 87th minute