Edinburgh have signed Argentina prop Ulises Gamboa from RaboDirect Pro12 rivals Aironi until the end of the season.
Head coach Michael Bradley swooped for Gamboa after losing props Allan Jacobsen and Geoff Cross to Scotland duty and Lewis Niven to a back strain.
Bradley said: "Ulises is a prop of considerable experience, having been capped for one of the set-piece powerhouses of world rugby. He'll provide valuable support for the squad until the end of the season when we'll reassess his place at the club."
Gamboa, who has eight caps and can play on either side of the scrum, is available for Friday's league clash with Ospreys at Murrayfield and will be added to the squad for the Heineken Cup quarter-final against Toulouse in April.