Former Chelsea goalkeeper Mark Bosnich says the intensity and pace of the Premier League will make it hard for Alvaro Morata.

The Spaniard is close to finalising a move to Chelsea from Real Madrid after the clubs agreed upon an initial fee of £58m, which could rise to £70m if all clauses are met.

Speaking to talkSPORT: "He's got big shoes to fill at Chelsea.

"Diego Costa, for whatever his right or wrongs, he's done the business at Chelsea. He's had great success there.

"Morata is obviously a quality player – you don't go to Real Madrid and Juventus unless you have quality.

"But it's always a worry when you sign a player who hasn't played in the Premier League.

"The Premier League is played at an intensity and a pace that you don't get anywhere else in the world, so you've always got that concern."