Antonio Carvalho, from Canada, reacts during his featherweight mixed martial arts bout against Felipe Arantes, from Brazil, at the Ultimate Fighting Championship (UFC) 142 in Rio de Janeiro, Brazil, ... more 

Antonio Carvalho, from Canada, reacts during his featherweight mixed martial arts bout against Felipe Arantes, from Brazil, at the Ultimate Fighting Championship (UFC) 142 in Rio de Janeiro, Brazil, Saturday Jan. 14, 2012. Carvalho lost the fight. (AP Photo/Felipe Dana) less