Sammy Clingan has joined up with the Northern Ireland squad ahead of their Euro 2012 qualifier against Estonia in Tallinn on Tuesday.
The midfielder was forced to miss Friday's defeat at home to Serbia with a virus, but is now available to play some part on Tuesday.
It has not been confirmed whether the Coventry City man will be fit to start.
Nigel Worthington's side are 10 points behind leaders Italy in Group C, but still have a chance of making the play-offs for the 2012 tournament.