Nottingham Forest have completed the signing of Ivory Coast defender Ousmane Diomande from Sporting in a deal worth a reported £34m. Ousmane Diomande, 22, has signed a four-year contract at the City Ground, with Forest holding an option to extend the agreement by another year. Diomande becomes the latest addition to new manager Oliver Glasner’s squad as Forest look to strengthen ahead of the new season. It is a historic club, and it motivates me to join such a club,” said Diomande. Diomande began his career with Olympic Sport Abobo in Ivory Coast before moving to Danish club FC Midtjylland.