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Barcelona striker Lionel Messi expresses his frustration during Barcelona's 2-1 defeat by Arsenal in the first leg of their Champions League tie, Emirates Stadium, London, 16 February 2011: photo by Eloy Alonso / Reuters
Lionel Messi during preparations for the match against Arsenal at the Emirates: photo by wonker
Barcelona players celebrate David Villa's opening goal against Arsenal at the Emirates: photo by wonker
Arsenal midfielder Alex Song hounds Lio Messi on the ball at the Emirates: photo by Eddie Keogh / Reuters
Alex Song sends Messi tumbling: photo by Eddie Keogh / Reuters
Messi goes to ground before Arsenal defender Laurent Koscielny: photo by Jordi Cotrina / Reuters
The exasperation of Lio Messi: photo by Eddie Keogh / Reuters
Robin van Persie rounds Barcelona defender Gerard Piqué to drive home Arsenal's equalizer: photo by Eddie Keogh / Reuters
Robin van Persie celebrates his equalizing goal with Gael Clichy: photo by Reuters
Arsenal's Andrei Arshavin celebrates his winner with Nicklas Bendtner: photo by Reuters
Striker Robin van Persie acknowledges the home support after Arsenal's surprising victory: photo by wonker
Defeated Barcelona players depart the pitch: photo by wonker
The lamentation of Lio Messi: photo by Eddie Keogh/ Reuters
They are the best side in football's history, in my opinion -- Cesc Fabregas of Arsenal, speaking of the visiting opponents, after his side's 2-1 victory over Barcelona in the first leg of their Champions League tie, Emirates Stadium, London, 16 February, 2011
