Maro Itoje takes on England coach Eddie Jones. Photo / Getty Images
Maro Itoje goes down in pain during an England training session. Photo / Getty Images
Itoje sustained knee ligament damage in England's win over Ireland in Dublin last month, and was expected to make his return this weekend when England take on Italy in the Six Nations.
However, going down at training, his status for the weekend is now in doubt.
Should Itoje be unavailable, England will have some issues in their locking department. Courtney Lawes was injured in the side's loss against Wales late last month, and they were banking on the return of Itoje to fill that void.
Only three locks were selected in England's 31-man training squad ahead of their clash against Italy - Itoje, George Kruis and Joe Launchbury. As a result, utility forward Nathan Hughes could see some time at lock.