Aston Villa midfielder Yacouba Sylla has joined French side Rennes on a four-year contract. The 24-year-old’s move to the Ligue 1 club ends his two-and-a-half year stay at Villa Park. The Mali international joined Villa from Clermont Foot for £2m in January 2013 but made only 12 Premier League starts and spent last season on loan at Turkish club Kayseri Erciyesspor.