Summary:
Douglas Costa's loan from Chelsea has been extended to £18.9m after Chelsea rejected a £18m bid for striker Douglas Costa.

Full article:
Chelsea have increased their offer for Shakhtar Donetsk midfielder to £18.7million as they continue to pursue Fiorentina winger Juan Cuadrado this transfer window. The Blues had an opening bid of £16million rejected for  Costa on Thursday evening, according to the player himself. Chelsea have turned their attention towards Brazilian Costa with Fiorentina still holding out for £27m for their Colombian winger Cuadrado. VIDEO Scroll down to see Douglas Costa score a deceptive goal for Shaktar Donetsk . Shakhtar Donetsk's Douglas Costa says it would be a 'dream' to play for Premier League leaders Chelsea . The Blues have had a £16m bid for the 24-year-old (right) already rejected by the Ukrainian club . Costa confirmed on Thursday night that the Barclays Premier League leaders had been in touch about a move to Stamford Bridge – one that the 24-year-old describes as a ‘dream’. Chelsea are considering a double swoop for Costa and Cuadrado with Egyptian Mohamed Salah and German World Cup winner Andre Schurrle set for the Stamford Bridge exit. However Costa's Ukrainian employers won't allow their star player to leave on the cheap as Chelsea look to seal both transfers before the deadline on February 2. Chelsea are also interested in Fiorentina's £27m-rated star Juan Cuadrado (right)