Saracens have completed the signing of Munster and Ireland scrum-half Peter Stringer on a three-month loan deal.
The 33-year-old joins Sarries because of injuries to Neil de Kock and Richard Wigglesworth.
Stringer, who has played 98 times for his country, has won two Heineken Cups and a Six Nations Grand Slam.
He told the official Munster website: "I believe I still have a lot to offer and want to continue to play at the highest level."
He continued: "In the situation I currently find myself, that is outside the Munster match day squad, I think this temporary switch to Saracens will serve my ambition best.
"This offers me a new challenge, and I'm grateful to Munster management for their co-operation."
Saracens director of rugby Mark McCall added: "We are fortunate to have a pair of outstanding young scrum-halves in Ben Spencer and Luke Baldwin, but the injuries to Wigglesworth and De Kock have left us exposed in this pivotal position.
"We are delighted to have secured the services of Peter Stringer, an experienced player of proven quality."