Bolton have made their first signing of the summer after Swansea midfielder Darren Pratley agreed a four-year deal.
The 26-year-old made 199 appearances during a five-year spell with the Swans, his last being in the npower Championship Play-off final win over Reading at Wembley which secured promotion to the Barclays Premier League.
"We're delighted to have Darren here," Wanderers manager Owen Coyle said. "A number clubs were interested in him and we are pleased to have secured his services."
Pratley admitted the decision to move to the Reebok Stadium was the biggest of his career.
"It was nice to leave Swansea on a high after gaining promotion to the Premier League and I'm now looking forward to showing the fans what I can do here," the 26-year-old said.
"It was the biggest decision of my footballing career so far to leave Swansea.
"I enjoyed playing and living there and the club have been extremely good to me. It was always going to be a big decision for me regardless of whether Swansea got promoted or not.
"What's important to me is that I join Bolton as a Premier League player after that play-off final.
"I was delighted to have gained promotion with Swansea. I leave there wishing them well and I'd like to thank everyone there for supporting me.
"Now I'm really looking forward to Monday and getting into training and meeting the lads."