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Siena, ITALY: Inter Milan's defender Marco Materazzi jubilates after scoring a penalty against Siena during their Italian serie A football match at Siena's Artemio Franchi Stadium, 22 April 2007. AFP PHOTO / FILIPPO MONTEFORTE (Photo credit should read FILIPPO MONTEFORTE/AFP via Getty Images)

Siena, ITALY: Inter Milan's defender Marco Materazzi jubilates after scoring a penalty against Siena during their Italian serie A football match at Siena's Artemio Franchi Stadium, 22 April 2007. AFP PHOTO / FILIPPO MONTEFORTE (Photo credit should read FILIPPO MONTEFORTE/AFP via Getty Images)