This means Iheanacho has now scored a goal every 96 minutes, an impressive achievement given this is only his second season in the English top-flight having made his debut under Manuel Pellegrini last term.
The 20-year-old has also remarkably netted 12 Premier League goals from just 19 shots on target in over 38 games.
Man City are seven points behind Premier League leaders Chelsea, who are on a 12-game winning streak that has seen them sprint clear from other title contenders.