Since joining Manchester City from Atletico Madrid in 2011, Sergio Aguero has collected silverware on nine occasions, including winning the Premier League four times. He is City’s all-time leading scorer with a remarkable 244 goals, 15 of which have come in just 19 appearances against Chelsea.
There is no doubt Aguero has been a major thorn in the west London club’s side, but the fortunes of both clubs might have worked out differently had Chelsea gone through with plans to sign him from Atletico first.
A decade ago, Aguero looked bound for Stamford Bridge. Aged just 21, he was already making a big impression in Spain and Chelsea were looking to make a marquee signing to freshen up their attack.