Petr Cech will have a medical today ahead of his move to Arsenal. The 33-year-old has agreed terms and is expected to be unveiled as an Arsenal player shortly. Chelsea are believed to have negotiated an £11 million fee for the goalkeeper. Another Chelsea player expected to leave is Mohamed Salah and according to Sky Sports the winger is hoping to seal a move to Fiorentina. Salah spent last season on loan in Florence and wants to return, however his £2.1 million wage demands could be a problem. And finally Chelsea have been dealt a blow in their pursuit of Douglas Costa after it emerged that Bayern Munich are close to completing a £25m deal for the playmaker.