“Lee has everything that I like in a player so I’m delighted to have brought him to Sunderland,” Bruce said in the Daily Express.
“He is a terrific footballer. He is young, strong and has a real passion for the game that I’m sure our supporters will love.
“As a North East lad, he understands what it means to represent a club in this region and will bring some real bite to our side.
“I’ve been delighted with all the signings I’ve been able to make so far. Lee is a great addition and will strengthen us through the spine of the team, while creating real competition across midfield.”