Ospreys have signed Georgia captain Giorgi Nemsadze - a lock or flanker - on a short-term deal from Bristol until the end of the season.
The arrival of the 33-year-old will help cover for the absences of lock Rory Thornton and flankers Justin Tipuric and Will Jones.
Thornton is recovering from a dislocated shoulder while Jones has an ankle problem.
Tipuric is heading to the Gold Coast Commonwealth Games with Wales Sevens.
Ospreys rugby general manager Dan Griffiths said: "Giorgi is physical and aggressive, as you'd expect with a Georgian forward.
"His country's success in recent years has been built around the pack and he has been a key part of that."