#900033From left: Chief referee Viktor Kassai is showing a yellow card for rough play to Spartak's forward Artyom Dzyuba at the 2010-11 Europa League quarterfinal FC Spartak Moscow, Russia vs. FC Porto Porto, Portugal.Sign in or register,to downloadAdd to cartRemove from cartPackage: Football. UEFA Europa League. Spartak vs. PortoCategories: SportsLocation: Moscow, RussiaEvent date: 14.04.2011Date published: 14.04.2011Author: Anton DenisovCredit: SputnikSource: SputnikOriginal: DigitalMedia: JPEG, 3264x4584px, 4.6Mbfootballerreferee