The England and Wasps scrum-half Dan Robson will be out for three months as he recovers from a deep vein thrombosis in what could prove a problem for Eddie Jones’s World Cup preparations.
Robson, who was among the replacements for the first four of England’s Six Nations games, pulled out of the final match against Scotland and has not played since.
Wasps said he is undergoing treatment and will return to full training in July, only two months before the World Cup begins in Japan.
A Wasps statement said: “Dan Robson unfortunately developed a deep vein thrombosis. He is undergoing treatment which is expected to conclude following three months. This means he will not be available for selection for Wasps for the remainder of the season, however it should enable him to be available for selection for the World Cup preparations.”
The prognosis could make life difficult for Jones, with his two frontline scrum-halves chosen for the Six Nations now injured; the third, Ben Spencer, was called up only when Robson pulled out of the Scotland match.
England’s starting scrum-half Ben Youngs sustained a shoulder injury against Scotland and had surgery this week. Neither England nor his club, Leicester, have given a time for his recovery, except to say he will miss the remainder of the season.