Reliable Argentine goal-scorer Sergio Aguero, 26, has already netted nine goals from eight Premier League appearances this season.
He also has a remarkable attacking efficiency as he averages a goal scored for every four shots and also scores every 58 minutes he is on the pitch.
Despite West Ham United's tremendous start to the current campaign, with four wins and 15 goals scored from eight outings to date against three losses and 11 conceded and despite a number of high performing Hammers like Stewart Downing, Diafra Sakho and Mark Noble, the East Londoners will come unstuck because of Aguero.
That is the opinion of Sky Sports analyst Paul Merson, who anticipates a good game at the Boleyn Ground but one in which the home team may lose due to a 2-1 reverse.
"West Ham is a tough place to go these days," said Merson.
"Diafra Sakho and Enner Valencia play with a lot of pace and can’t stop scoring goals and Stewart Downing is playing in a really good position.
"However, Man City have to win to put some pressure on Chelsea and I think it will prove a hard game for both sides with not a lot in it.
"Ultimately I think Sergio Aguero will be the difference and for that reason I am going for a narrow Man City win."