3 - Both clubs are going for their fourth European Cup wins. And both first tasted continental glory at Wembley; United in '68 and Barca in '92.
In numbers: The Champions League final
1 - there's just a single ashcloud but it could well cause a lot of trouble. Barcelona traveled to England on Tuesday night in a bid to beat any disruption while Catalan fans might be kept away.
In numbers: The Champions League final
2 - The number of Irishmen on show. Waterford's John O'Shea and Derry-born Republic international Darron Gibson.
In numbers: The Champions League final
€80 - the price of the cheapest ticket to the Wembley showpiece. The most expensive? €338.
In numbers: The Champions League final
€30.7million - the total prizemoney the winning club will pick up from UEFA. Or one Berbatov as it's called int he currency markets.
In numbers: The Champions League final
145.1 - the number of people who watched last year's decider between Inter Milan and Bayern Munich. There'll be a few more this season you imagine.
In numbers: The Champions League final
8 - The number of World Cup winners in the Barcelona squad. Pretty good, I guess.
In numbers: the Champions League final
In numbers: The Champions League final
In numbers: The Champions League final
In numbers: The Champions League final
In numbers: The Champions League final
In numbers: The Champions League final
In numbers: The Champions League final
In numbers: The Champions League final
Check out all TheScore’s Champions League coverage | Join us for a final liveblog before kick-off at Wembley
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Champions League Champions League Final UEFA Champions League Manchester United Barcelona UCLF2011 Wembley Way