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BARCELONA, SPAIN - MARCH 04: Lionel Messi (L) of Barcelona is consoled by teammate Ronaldinho after getting injured during the UEFA Champions League 2nd leg of the First knockout round match between FC Barcelona and Celtic at the Camp Nou stadium on March 4, 2008 in Barcelona, Spain. (Denis Doyle/Getty Images for UEFA)

BARCELONA, SPAIN - MARCH 04:  Lionel Messi (L) of Barcelona is consoled by teammate Ronaldinho after getting injured during the UEFA Champions League 2nd leg of the First knockout round match between FC Barcelona and Celtic at the Camp Nou stadium on March 4, 2008 in Barcelona, Spain.  (Denis Doyle/Getty Images for UEFA)