LONDON (AP) — New England flanker Calum Clark will undergo shoulder surgery and is in danger of missing a second straight Six Nations.
Clark hurt his right shoulder while playing for Northampton in the Heineken Cup last weekend.
He will undergo surgery on Wednesday and wrote on Twitter that he will be "out of action for the foreseeable future."
Yet to play for England, he missed last year's tournament when he was suspended for breaking an opponent's elbow.
Mouritz Botha has joined England at its training camp in Leeds as Clark's replacement.
England's opening match is against Scotland on Feb. 2 at Twickenham.