#2752108Rostekh CEO Sergei Chemezov during the open training session conducted by American boxer Floyd Mayweather in the Rossiya State Central Concert Hall.Sign in or register,to downloadAdd to cartRemove from cartPackage: Boxer Floyd Mayweather's open training session in MoscowCategories: SportsLocation: Moscow, RussiaEvent date: 04.12.2015Date published: 04.12.2015Author: Evgeny BiyatovSource: SputnikCredit: SputnikOriginal: DigitalMedia: JPEG, 3668x2409px, 5.7Mbhorizontal