Aguero has been an incredibly reliable goalscorer since his £38m move to the Etihad from Atletico Madrid in 2011, having scored 41 league goals in 59 appearances.
After his two-goal match winning display against CSKA Moscow, manager Manuel Pellegrini said to Sky Sports, "he is a top player. I always talk with Sergio about the fact that he, for me, is one of the five top players in the world."
Indeed, Aguero is City’s top scorer so far this season, scoring six goals in six league starts. That impressive figure is amidst tough competition from the likes of Alvaro Negredo, Edin Dzeko and Stevan Jovetic.
“He must try to demonstrate it in every game he plays,” continued Pellegrini, “he is playing with more intensity when we don't have the ball and he has a lot of quality to make the difference.”
"I didn't know the statistics which said City have never lost when he scored but he is an important player for us.”
Pellegrini also referred to Aguero’s goal against Queens Park Rangers at the end of the 2012 season that snatched the Premier League title from Manchester United in the dying seconds, “he was an important player also in the past - with his goal Manchester City won the title. We hope in the future he will continue being a very important player for the club."
The Chilean will certainly be hoping that the Argentinian hitman can continue his scoring run against Chelsea tomorrow, in a game that could ultimately prove decisive in the Premier League title race.