Socceroos and Blackburn midfielder Vince Grella will be sidelined for the remainder of the English Premier League season after undergoing an operation on an Achilles injury.

Grella has only made seven appearances for Rovers this season so far, due to his injuries, so went for the operation now to be fully recovered in time for next season.

It's not known at this stage if the injury will affect his chances in the early stages of Australia's 2014 World Cup qualifying campaign, which begins in September.