#2304817FC Porto (Portugal, Porto) players Héctor Herrera and Helton, right, at Estádio do Dragão during training ahead of the group stage match of the 2013/2014 UEFA Champions League between FC Porto (Portugal, Porto) and FC Zenit (Russia, St. Petersburg).Sign in or register,to downloadAdd to cartRemove from cartPackage: Football. FC Porto during training ahead of match against FC ZenitCategories: SportsLocation: Porto, PortugalEvent date: 21.10.2013Date published: 21.10.2013Author: Alexander VilfCredit: SputnikSource: SputnikOriginal: DigitalMedia: JPEG, 4000x3000px, 6.8Mbballfallingstar