The Blues also sold Ramires to Jiangsu Sunning last January for around £25m. PA:Press Association3Diego Costa has been in scintillating form for Chelsea this season with 14 goal. JESUS NAVAS is in talks over a?potential return back to boyhood club Sevilla?at the end of the season. At the moment, the club are seriously thinking about going back in with a much improved offer. The Belgian reports believe that Witsel could be set to team up with Oscar at Shanghai SIPG. SunSport revealed Stamford Bridge boss Antonio Conte is eyeing a reunion with his former Juventus midfielder. Inter boss Stefano Pioli?are also keen on Atalanta midfielder Roberto Gagliardini, who has impressed this?season in Serie A. Payet left Marseille for East London in June 2015 for £11m, with the then cash-strapped?French club forced to part with the star. Juve also chased?the striker before he moved from Spain to the Premier League with Arsenal, with Liverpool also contenders for his signature. .EmaGiulianelliRelated storiesdeal me inArsenal, Chelsea, Manchester United and ALL Premier League c.