Worcester have bolstered their pack with the signing of Argentina international Mariano Galarza.
The lock, who has been capped 18 times by the Pumas, will arrive at Sixways with teammates Agustin Creevy and Leonardo Senatore following the end of the Rugby Championship on October 5.
He said: “We’ve all known each other for a few years and we know how each other play,” said Galarza. “It will make us more confident.
“I played here for Argentina against Warriors in 2011 and I was impressed. It is a really good place.”
The Warriors have also offered a permanent deal to former South Africa U20 wing Dean Hammond after strong displays in the A League.
“He’s the sort of youngster that I want to be able to generate more of. We see him as a development project,” said Warriors director of rugby Dean Ryan.