England's Vunipola could miss Six Nations with suspected broken arm

Rugby Union - European Champions Cup - Pool 4 - Saracens v Racing 92 - Allianz Park, London, Britain - January 19, 2020 Saracens' Billy Vunipola in action before sustaining an injury that results in him having to leave the pitch Action Images via Reuters/Paul Childs

(Reuters) - Billy Vunipola could miss England's Six Nations campaign after suffering a suspected broken arm during Saracens' Champions Cup match against Racing 92 on Sunday.

Number eight Vunipola, who featured in every game in England's run to World Cup final last year, was injured during the early stages of Saracens' 27-24 victory, and was withdrawn in the sixth minute at Allianz Park.