Walker failed to make a major impact in rugby union

The 25-year-old's switch to union was backed by the Rugby Football Union as they had high hopes for him but he never settled in the 15-a-side game.

"He's a massive boost to our team building in the bid to become a top six side," said Rovers boss Justin Morgan.

"It's a statement of intent to establish Hull KR in the game's elite."

Walker made his debut for Bath as a replacement last November, and went on to make 13 Premiership appearances, five of them off the bench.

Bath coach Steve Meehan said he was sad to see Walker go but wished him all the best.

"I am naturally disappointed that the club is losing a player with such tremendous potential in rugby union," he said.

"We started to see the extent of that talent towards the end of last season and I was confident Chev would have a big season for us this season and beyond.

It's great to be back and I'm totally relieved that Hull KR have given me the opportunity Chev Walker

"Everyone at Bath wishes him well on his return to Rugby League and a new career with Hull Kingston Rovers."

Walker broke through to the Leeds first team at the age of 16 and spent eight seasons in Super League, winning the title in 2004.

He played for England in the 2000 World Cup and also won six caps for Great Britain.

By signing a three-year contract, Walker becomes Hull KR's fifth confirmed signing for 2008, following the acquisition of Hull full-back Shaun Briscoe, Wakefield winger Peter Fox, and overseas duo Ben Galea and Jake Webster.

Walker said he had no regrets about his year in union but decided to move back to league mainly for family reasons.

"It's a personal decision, nothing to do with anything on the rugby front," he said.

"It was down to being away from family and friends so I jumped at the chance. It's great to be back and I'm totally relieved that Hull KR have given me the opportunity to come back.

"There's plenty of drive here and I'm excited by it. I've watched closely this year and seen that they've pipped some big teams and I'm sure we'll go closer next year.

"I don't have any regrets about what happened at Bath. My time in union hasn't done me any damage.