Diego Costa's summer switch from Atletico Madrid to Chelsea has left the Spanish giants with serious financial regrets, with club president Enrique Cerezo revealing that Chelsea caught the La Liga champions in a moment of weakness to pull off a serious transfer coup.
Chelsea landed one of Europe's most physically imposing, clinical strikers for £32 million after deciding to meet Costa's release clause at the end of last season, a move which the Brazilian-born forward has wasted little time in justifying.
Costa's impressive return of nine goals in eight Premier League games has made that transfer fee look like something of a bargain, even more so when you consider Atletico only picked up £16m due to a familiar foe in third-party ownership.
Cerezo is still seething
In an interview relayed by The Express the Rojiblancos chief pulled no punches with his disappointment over Costa's departure, insisting: “He is one of the best strikers in the world. His departure was hastened because we had a weak moment in which we couldn’t say no.
“If it was to happen now, he wouldn’t go. The economic issue hasn’t been good for us as we got 50 per cent of what was said. It was more about money for him.”
- Jose Mourinho was wrong to criticise Chelsea fans
- Chelsea legend signs £190,000-a-week move to Manchester
- Real Madrid eye Chelsea star for shock transfer
Mourinho raided Atletico twice in one summer
Chelsea manager Jose Mourinho's summer transfer business was nothing short of sensational, with three La Liga raids in particular turning the Blues into arguably the Premier League's most complete squad.
Mourinho stole two of Atletico's La Liga winning team and key components at that, with Costa joined at Stamford Bridge by Brazilian defender Filipe Luis.
Cesc Fabregas was also a key capture but the deal which brought Costa to West London was Chelsea's most important signing by some distance.
Costa is the potent predator the Blues have been crying out for even since Mourinho began his second spell in charge at Chelsea, but it's one that clearly still rankles with Atletico as they wait to see if Mario Mandzukic can replace a man who scored a magnificent 36 goals last season.