Justin Harrison today confirmed his decision to leave Ravenhill at the end of the season having agreed a short-term deal with English side Bath.
The 33-year-old, who captained Ulster to the Celtic League title in 2006, is among a raft of high profile players who have opted to move on from the struggling province in the summer.
Matt William's side have now lost Neil Best and Roger Wilson to Northampton while Tommy Bowe has signed for the Ospreys and Neil McMillan is bound for Harlequins.
Harrison, who played 34 Tests for Australia, said today that he is looking forward to a fresh challenge.
"Joining Bath presents a fantastic opportunity to become part of a team that represents the true professionalism and competitiveness that is required to successfully challenge in the Guinness Premiership and in Europe," said Harrison.
"The team is producing an exciting and innovative brand of rugby which is made possible by the dynamic quality of the players. Importantly, the squad also has a balance of youth and experience that has presented me with an opportunity to become part of a top Premiership team."
There was some consolation for Ulster this afternoon, with the news that prop Justin Fitzpatrick has signed a two-year contract.
Fitzpatrick has been capped 130 times for Ulster in two stints with the province. He spent two seasons with Castres in France before returning at the beginning of the 2005-2006 season.
The prop, capped 26 times by Ireland, said today: "I am very glad to be extending my contract with Ulster, the support that the team has here at Ravenhill is fabulous. Ulster Rugby has been a major part of my rugby life and I am excited about the direction that the team is taking under the guidance of Matt Williams and I am very much looking forward to the next two seasons."
Fitzpatrick's decision has been welcomed by Williams but, at 34, his best days are most certainly behind him.
The prop, who has over 50 Heineken European Cup caps to his name, last played for Ireland against Italy in Limerick before the 2003 Rugby World Cup.
Williams welcomed his commitment today. "The side will be further strengthened by his great experience and his leadership over the next two seasons," said the Australian.
