Champions League: Barcelona v Bayern Munich

Lionel Messi wheels away after scoring the first goal at Camp Nou on nine minutes Photograph: Manu Fernandez/AP

Bastian Schweinsteiger of Bayern is challenged by Thierry Henry of Barcelona Photograph: Lars Baron/Getty Images

Samuel Eto'o adds a second goal as goalkeeper Hans-Jorg Butt looks on helplessly Photograph: Lars Baron/Getty Images

Bayern's goalkeeper lies injured with blood on his face after a clash with Henry Photograph: Lars Baron/Getty Images

Jurgen Klinsmann, Bayern's head coach, watches from the dug-out Photograph: Manu Fernandez/AP

Messi and Daniel Alves celebrate as the Catalans take a seemingly unassailable three goal lead Photograph: Albert Gea/Reuters

Luca Toni stands dejected with his Bayern team-mates as their hopes of a semi-final place disintegrate Photograph: Jasper Juinen/Getty Images

Hamit Altintop shields the ball from Carlos Puyol Photograph: Albert Gea/Reuters

Daniel Alves shoots past Bayern Munich's Breno Photograph: Albert Gea/Reuters

Henry is smothered after adding a fourth goal two minutes before the interval Photograph: Reuters

Henry shows his delight Photograph: Albert Gea/Reuters

Hamit Altintop skips away with the ball Photograph: David Ramos/AP

English referee Howard Webb sends Barcelona coach Josep Guardiola to the stands Photograph: Andreu Dalmau/EPA

Bastian Schweinsteiger's face tells the story as Bayern are left stunned by the 4-0 scoreline Photograph: Gustau Nacarino/REuters