James Scott Rhys Anderson, 22, is said to be a former British Army soldier who was captured in the Kursk region.
Los Blancos, sitting in second, capitalised on leaders Barcelona’s draw to Celta Vigo on Saturday to move four points behind with a game in hand.
Eddie Jones claimed he was abused by a fan at half-time of Japan’s 59-14 defeat by England at Allianz Stadium before laughing off allegations made by Danny Care over his management style.