FORMER Worcester Warriors skipper Jonathan Thomas has joined Aviva Premiership rivals Bristol as a defence coach.

The 33-year-old, who won 67 caps for Wales between 2003 and 2011, had been identified as Bristol’s number one target for the newly-created role.

Thomas was forced to retire from playing last autumn after being diagnosed with epilepsy thought to be linked to multiple head injuries on the field.

He had been diagnosed with epilepsy in 2014, with the condition thought to be related to multiple head traumas and having led to a degree of brain injury.

Thomas’ final playing appearance was helping Warriors to a last-gasp victory against Bristol in the Greene King IPA Championship promotion final in May 2015.

He also played for Swansea and Ospreys during his club career.

"I've really enjoyed my time with Worcester Warriors which has obviously been a transitional time for the club," said Thomas in September 2015.

"My last memories on a rugby pitch will always be the two-legged play-off final against Bristol and that is something that will stay with me forever."

In a statement on Bristol’s website, director of rugby Andy Robinson said he had identified Thomas as the candidate for the job.

"We're pleased to welcome Jonathan to the club," said Robinson.

"I'd pinpointed him as an ideal candidate for the role and Jon has impressed us with his knowledge and understanding.

"Successful teams in the Aviva Premiership are built on a strong defence so Jon is an important addition to our coaching set-up."

Thomas, who won two Six Nations Grand Slams with Wales, said: "It's fantastic to be able to start my coaching career with Bristol.

"I've been really impressed with the set-up and ambition of the club.

"There's a quality squad of players here and a strong team ethic – I'm looking forward to working with them and the management team."