England scrum-half Ben Youngs will reportedly not play another minute in the Six Nations due to a knee injury.
The 28-year-old suffered knee ligament damage during the opening exchanges of his nation's 46-15 victory over Italy on Sunday.
According to BBC Sport, Youngs is expected to be sidelined for around four months after scans revealed that he has ruptured the medial collateral ligament in his left knee.
The report claims that the scrum-half will undergo further assessment this week, but is not expected to feature again for England in this tournament.
Saracens' Richard Wigglesworth has been called up to replace the injured star.