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Al-Ain's Asamoah Gyan (L) fights for the ball with Naft's Amin Hajmohammadi (R) during their AFC Champions League Group B football match Iran's Naft Tehran against UAE's Al-Ain at Sheik Hazza Bin Zayed stadium on May 6, 2015 in Al-Ain. AFP PHOTO / STR (Photo credit should read -/AFP/Getty Images)

Al-Ain's Asamoah Gyan (L) fights for the ball with Naft's Amin Hajmohammadi (R) during their AFC Champions League Group B football match Iran's Naft Tehran against UAE's Al-Ain at Sheik Hazza Bin Zayed stadium on May 6, 2015 in Al-Ain. AFP PHOTO / STR

        (Photo credit should read -/AFP/Getty Images)