Mack Hansen serious doubt for Six Nations following surgery on injured foot

Mack Hansen suffered another recurrence of his foot injury against South Africa. Pic: Dan Sheridan/Inpho

Mack Hansen has emerged as a serious doubt for the Six Nations after undergoing surgery for a troublesome foot injury.

A timeline when the Irish winger might return has not been set but all the indications are that it will be months rather than weeks before he is back.