Champions League favourites Barcelona are in London for what promises to be a highly attractive quarter-final tie against Arsenal. In a rematch of the 2006 final, which saw Barcelona come from behind to win the trophy, Thierry Henry has since switched sides from the Gunners to the Catalans. All eyes will be on Lionel Messi after he brilliantly dispatched Stuttgart from the competition last time round. Will Arsene Wenger's talented young team be able to recapture the form which saw them demolish Porto 5-0 in their last European tie? Steve Rider presents from the Emirates.
