MOSCOW, July 19. /TASS/. Russian Foreign Minister Sergei Lavrov told US Secretary of State John Kerry all he thinks about the provocative anti-Russian requirements of the US Anti-Doping Agency (USADA) to the International Olympic Committee (OIC), the Russian Foreign Ministry said on Tuesday after a telephone conversation between the two top diplomats.

"Kerry agreed that it is necessary to prevent politicization of sport," the ministry said.