 Chelsea boss Graham Potter has somewhat worryingly admitted that new signing Mykhaylo Mudryk is not guaranteed to be a success in the Premier League. The Blues hijacked Arsenals attempts to sign the Ukrainian winger as they splashed out an eye-watering 89m to bring him in from Shahktar Donetsk. The 22-year-old could make his Premier League ... Chelsea boss Graham Potter makes worrying admission on Mykhaylo... 