The 25-year-old was injured in Saints??? 4-1 defeat at Manchester City in April 2014 and has yet to feature this season.
But Rodriguez, who scored 17 goals in 40 appearances before his injury, could return before the end of the season.
Ronald Koeman???s side can still secure a Europa League place and the return of Rodriguez is a timely boost to their chances of a top-six finish.
A first-team run-out for Rodriguez could in turn improve his chances of adding to the one England cap he has and give him an outside chance of making Roy Hodgson???s squad, if England qualify for next year???s European Championships in France.