Worcester have completed the signing of veteran Ireland international second row Donncha O'Callaghan from Munster.
The experienced lock arrives at Sixways having spent 17 seasons at Munster, where he won the Heineken Cup twice, and also claimed two Celtic League titles.
At international level he won 94 caps for Ireland, usually alongside Munster teammate Paul O'Connell, helping them to the 2009 Grand Slam, while he also made four appearances for the Lions.
He appeared in three World Cups, but despite having turned 36, he is excited about the opportunity to play for Premiership new boys Worcester.
He said: "I'm very grateful to Munster for all that they've done for me but now I'm hungry for my new challenge.
"The developments and structures in place at Warriors are very exciting but also the quality of management and the players at the Club are something I cannot wait to be a part of.
"I watched the Bristol game where Warriors turned it around in the last seven minutes at the end of last season, and that was really impressive.
"Now I'm looking to win the respect of the management, the players and most importantly, the supporters, and I will be giving my absolute all."
He will provide valuable experience for Worcester in the tight five as they return to the top flight after a season away. And head coach Dean Ryan was delighted to add a player with O'Callaghan's pedigree to the squad.
"The opportunity to bring someone in with such international and European experience is a real coup for the club.
"It's important to get a balance of proven and experienced performers and young developing talent integrated within the squad.
"Donncha has tremendous know-how at the highest level and will be able to offer our younger players a great deal of advice.
"His experience and leadership can only be of benefit to the team as we prepare for life in the Aviva Premiership."