Ahead of the Challenge Cup final against Ulster, Montpellier back row Billy Vunipola talks doubts, trophies and turning down the chance to play for Tonga.
Doubts, trophies & Tonga – Vunipola's fresh start
Ahead of the Challenge Cup final against Ulster, Montpellier back row Billy Vunipola talks doubts, trophies and turning down the chance to play for Tonga.