Midfielder arrives on three-and-a-half-year deal.
Brighton midfielder Liam Bridcutt has become Sunderland’s fifth signing of the January transfer window.
Bridcutt, 24, has signed a three-and-a-half-year contract on Wearside and arrives for an undisclosed fee.
The Scottish international is reunited with head coach Gus Poyet after the pair worked together at Brighton.
A former Chelsea trainee, Bridcutt cut his teeth with loan spells at Yeovil, Watford and Stockport, making a combined 37 appearances.
Poyet brought Bridcutt to Brighton on a permanent basis in August 2010 and the midfielder was soon established in the first team, winning promotion to the Championship at the end of his first season.
Bridcutt bagged the Seagulls’ Player of the Season award in both 2012 and 2013, making 151 appearances for the club overall and scoring two goals.
Born in Reading, Bridcutt qualifies for Scotland through his grandfather and made his international debut against Serbia in March 2013.