Shakhtar Donetsk midfielder Douglas Costa has reiterated his desire to join Chelsea, citing the opportunity to work under Jose Mourinho as a reason to move to Stamford Bridge. The Brazilian was heavily linked with a move to west London in January, but the Blues opted instead to sign Juan Cuadrado from Fiorentina with Mohamed Salah heading in the opposite direction. However, Costa's aspirations to play in the Premier League remain undiminished, particularly after getting positive feedback from international team-mate Willian on what it's like to represent Chelsea. In other news, former Arsenal defender Martin Keown has revealed that Chelsea made a surprise attempt to sign Gunners legend Thierry Henry when Roman Abramovich first arrived at the club in 2003. The bid was flatly rejected. And finally, Jose Mourinho is ready to sanction a move for Real Madrid defender Raphael Varane after watching his side crumble defensively against Paris Saint-Germain in the Champions League.