Newcastle United have completed the signing of Senegal midfielder Henri Saivet from Bordeaux on a five-and-a-half-year deal.

Saivet has joined Newcastle for an undisclosed fee, becoming their first signing of the January transfer window.

"I am very happy to be here at Newcastle," Saivet told the club's official website. "I am really proud to be able to play for this club, and I am really excited at the challenge that lies ahead."