The 57-cap international joins Wales captain Craig Bellamy on the doubtful list for Wales' summer games, while West Ham defender Danny Gabbidon is a long-term absentee.
For Warrington-born Rickard, however, the year was also hugely significant as she bettered the 103-cap mark set by ex-Wales captain Gareth Thomas in the men's game, whose tally included three British and Irish Lions appearances.