Chelsea missed out on the chance to sign Sergio Aguero because intervention from John Terry, who urged the board to instead get David Villa.
Aguero eventually joined Manchester City in 2011 for £38million and has netted 244 times to become their greatest ever goalscorer, with 15 of those coming against Chelsea, who they face this Saturday – LIVE on talkSPORT.
But he could very well have ended up at Stamford Bridge a year earlier, with Chelsea making two separate enquiries.
According to The Athletic, the Blues wanted Aguero, then 21, in the summer of 2009 and went back again in January 2010.
However, owner Roman Abramovich was not prepared to pay the £40m demanded by Atletico Madrid, instead offering £30m.
It is also understood that former Chelsea captain Terry was not impressed with the Argentine striker, who he faced twice in the 2009/10 Champions League.
The first match, Chelsea cruised to a 4-0 win, but the following game, Aguero netted twice, including a stunning free-kick in the 2-2 draw at Vicente Calderon.
Terry, who was one of the leading personalities in the Chelsea dressing room, passed on his opinion to the board that it would be better if they looked at signing Valencia and Spain forward Villa.
At the time, Chelsea had an attack featuring Didier Drogba, Nicolas Anelka, Salomon Kalou and Daniel Sturridge.
In the 2011 January transfer window, Chelsea eventually signed an Atletico striker in the shape of Fernando Torres, via Liverpool and £50m, but never truly settled in west London.
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