By NEALE HARVEY

ZACHMercer is ready to answer England’s call for a No.8 capable of facing down the might of South Africa’s Duane Vermeulen and All Blacks skipper Kieran Read.
With Billy Vunipola and Sam Simmonds ruled out of the series through injury and Nathan Hughes suspended until the match against Australia on November 24, Bath back row Mercer has the perfect opportunity to state his credentials on the world stage.
Close to being capped against Italy during the Six Nations only for illness to intervene, Mercer was unlucky in June when lack of game time for his club followi...