Atletico Madrid enjoyed a stunning campaign last season, winning La Liga and reaching the Champions League final, but manager Diego Simeone always anticipated losing some of his key players.
It turned out that the team they defeated in the Champions League semi-finals, Chelsea, were the ones to tear apart their team the most.
Goalkeeper Thibaut Courtois returned to Stamford Bridge after a three-year loan deal, whilst left back Filipe Luis and striker Diego Costa also moved to West London for a combined fee of £50m.
So far, Costa has taken the Premier League by storm, hitting nine goals in eight games and earning plaudits aplenty since his move from the Spanish capital.
Costa's replacement was Bayern Munich's Mario Mandzukic, and whilst the Croatian international has scored six goals in 11 games for Atletico, president Enrique Cerezo has admitted that he shouldn't have agreed to sell Costa this summer.
"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," Cerezo said.
"If it was to happen now, he wouldn’t go. The economic issue hasn’t been good for us as we got 50% of what was said. It was more about money for him," he added.
Chelsea have reaped the rewards of Atletico selling their star man, and Cerezo has to now live with his departure - just as Atletico have done with the likes of Jimmy Floyd Hasselbaink, Fernando Torres, Sergio Aguero and Falcao.