Paul Clement, an assistant at Real Madrid, is against Jose Mourinho's side spending so big on an average former Atletico Madrid player.
Chelsea football club and Jose Mourinho may have been blinded in their quest to recruit an elite-level striker that they were duped into purchasing erstwhile Atletico Madrid predator Diego Costa, argues former Blues coach Paul Clement, as the Brazil-born Spaniard's lack of top talent is masked by his "aggression and nastiness".
He said in The Times: "Without that he'd be a fairly average player."
Last term, Costa scored 27 goals from 108 shots in 34 La Liga starts by providing a clear physically-imposing presence inside the penalty box. The 25-year-old's £32 million arrival in West London marked a clear statement of intent from Mourinho as he was able to capture the most effective Didier Drogba clone from last year - and managed to get him at a reasonable price.
Clement, who currently works alongside Carlo Ancelotti at the Estadio Santiago Bernabeu for Real Madrid, disagrees.
"I'm not surprised Mourinho has signed him as he's the kind of player who'd die on the pitch for his teammates, but he won't find it as easy to bully defenders in England as he did in Spain. He's not Didier Drogba yet, but he's a big improvement on what Chelsea had."
He continued: "Atletico had an amazing season last year, but Filipe Luis was their best player. We [Real Madrid] played them five times and I watched them on countless other occasions. He never seemed to make a mistake.
"He's good on the ball, reasonably quick and incredibly tough in the tackle. He's smart and resilient, so should be perfect for the Premier League. How he wasn't playing for Brazil this summer I'll never know."