London Irish have completed the signing of Leicester Tigers scrum-half Pat Phibbs on a short-term deal until the end of the season.
The 31-year-old Australian will provide cover for injured Ireland international Tomas O'Leary.
Exiles director of rugby Brian Smith said: "With Tomas sidelined for what could be the remainder of the season, we've been proactive in signing Pat.
"He's an experienced scrum-half, good organiser and strong defender."
Phibbs, who has played in Super Rugby for the Brumbies, joined Leicester this summer following a spell with Exeter Chiefs.
"I worked with Pat at the Brumbies and have great respect for his ability," Smith added.
"He also has knowledge of the English season so he's a pretty good fit for us.
"We've got at least 16 matches left in our season, so there'll be plenty of rugby for all three scrum-halves."