BARCELONA, SPAIN - SEPTEMBER 17: Lionel Messi of FC Barcelona bites his shirt during the La Liga soccer match between FC Barcelona and CA Osasuna at Camp Nou Stadium on September 17, 2011 in Barcelona, Spain. (Photo by David Ramos/Getty Images)
BARCELONA, SPAIN - SEPTEMBER 17: Lionel Messi of FC Barcelona bites his shirt during the La Liga soccer match between FC Barcelona and CA Osasuna at Camp Nou Stadium on September 17, 2011 in Barcelona, Spain. (Photo by David Ramos/Getty Images)