Colin Daniel has signed for Blackpool's League One rivals Peterborough United on a free transfer.
The left back, whose contract at Blackpool was due to end this summer, has signed a two-year contract at London Road.
The Seasiders confirmed they were hoping to renew the 30-year-old's deal but he has instead opted to make the move.
Daniel, who is also capable of playing left wing, made 70 appearances for Pool having originally signed in the summer of 2016.
Peterborough manager Steve Evans said: ‘I am delighted that another part of the recruitment process has come together with the signing of Colin Daniel from Blackpool.
"Colin has had another outstanding season and we have had to be patient as the kid has taken, quite rightly in my opinion, time to speak to a number of clubs that I would see competing at the top end of League One next season.
“We have taken our time, we have been patient but we are delighted with the signing.
"Colin is comfortable in any position on the left hand side of the pitch, from left-back to the left side of midfield or even further forward, but I will make it absolutely clear we have signed him to be competing as either a left full-back or a wing back.
"I am pleased he has chosen us over a number of other clubs.”
Daniel has previously played for Crewe Alexandra, Macclesfield Town, Mansfield Town and Port Vale.
Pool remain in talks with Armand Gnanduillet, Kelvin Mellor, Dolly Menga, Clark Robertson, Jay Spearing and Kyle Vassell over new deals.