âBournemouth have continued their strong summer recruitment after completing the club record signing of Dutch defender Nathan Ake from Chelsea for a believed to be £20m. Ake, who spent the first half of 2016/17 on loan with the Cherries until being recalled to Stamford Bridge, has signed a long-term contract at the Vitality Stadium. It has been rumoured that Chelsea asked for a buy-back clause to be included in the agreement.