Bournemouth have signed England Under-21 international Lloyd Kelly from Bristol City for a reported £13 million ($17m) fee.
The 20-year-old made 32 appearances in the Championship in the 2018-19 season as City narrowly missed out on the play-offs.
A left-sided defender, Kelly - who was linked with Liverpool, Arsenal and Southampton - has agreed a long-term contract to join the Cherries.
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"It's a fantastic club. The move has come around quite quickly, but I'm happy to be here and can't wait to start playing," he told Bournemouth’s official website.