Munster's Eoghan Hickey is to leave the club at the end of this season to join London Irish.
The 25-year-old has signed a two-year deal with the British side.
He joined Munster last year on a one-year contract from Leicester.
Meanwhile, the southern province have named a 28-man squad for their Magners League clash with Llanelli on Saturday.
Paul O'Connell and Shaun Payne are still sidelined for the match, while Peter Stringer, David Wallace and Alan Quinlan are also absent from the panel.