Barcelona are still the 15/8 favourite despite having to take on the Gunners in a repeat of the 2006 final, although this time Thierry Henry will be in Catalan colours.
Paddy Power quote the Spanish club at 4/9 to progress to the next stage while Arsenal are 13/8 to prevail against the holders.
Roberto Coladangelo spokesperson for Paddy Power said "Two massive games for Arsenal and United, but with the draw favouring United they have now been cut to 13/5 to pick up the title and Arsenal's huge task has meant they are now 9/1 from 6/1."
15/8 Barcelona
13/5 Man United
4/1 Inter Milan
9/1 Arsenal
11/1 Bayern Munich
14/1 Lyon
18/1 Bordeaux
40/1 CSKA Moscow
4/5 Lyon
10/11 Bordeaux
13/8 Bayern Munich
4/9 Man United
13/8 Arsenal
4/9 Barcelona
3/10 Inter Milan
9/4 CSKA Moscow
Arsenal v Barcelona
First leg match betting
7/4 Arsenal
23/10 Draw
6/4 Barcelona
13/8 Arsenal
4/9 Barcelona
15/2 Barcelona to win first leg 2-1
25/1 Arsenal keeper to be sent off in first leg
3/1 Henry to score at Emirates
8/1 Man United v Arsenal
10/3 Man United v Barcelona
7/2 Man United v Inter Milan
