During February, Iheanacho scored against Tottenham Hotspur in a 2–1 home defeat for City. Iheanacho's next goals came on 23 April 2016, where he scored twice against Stoke City in a 4–0 victory. He followed this up with a Champions League semi-final substitute appearance on 26 April 2016. Five days later, on 1 May 2016, he scored two again, albeit in a 4–2 defeat at the hands of Southampton. Iheanacho ended the 2015–16 season with eight Premier League goals and had the best goals-per-minute ratio of any player averaging, a goal every 93.9 minutes. In all competitions he finished with a record of 14 goals and 5 assists from 35 appearances, although he only started 11 of these games. His goals total also meant he ended the season as City's third-highest scorer. On 10 September 2016, Iheanacho started in the Manchester derby. He recorded an assist and his first goal of the season in a 2–1 win for City. Four days later, Iheanacho came off the bench to score the final goal in City's 4–0 home win in the Champions League, against Borussia Mönchengladbach. This was his first European goal for Manchester City. Three days after the 4–0 win, Iheanacho scored the second goal, also assisting the third, in City's game against Bournemouth. That goal took his tally in the Premier League to 10, allowing him to join an exclusive list of players to have scored 10 Premier League goals before the age of 20. This list includes players such as Wayne Rooney, Ryan Giggs, Nicolas Anelka, Michael Owen and Romelu Lukaku. In October 2016, Iheanacho was nominated for the FIFA Golden Boy award, which was eventually won by Bayern Munich's midfielder Renato Sanches. Previous winners of the award include teammates Raheem Sterling and Sergio Agüero, and six-time Ballon d'Or winner Lionel Messi. Iheanacho's next goal would come in the Champions League, against Celtic, in a 1–1 home draw on 6 December 2016. Iheanacho's final goal of the season, and subsequently final goal for City, came against Huddersfield in a 5–1 FA Cup fifth round replay win, in which Iheanacho scored the final goal of the game. Iheanacho was signed by Premier League club Leicester City on a five-year contract on 3 August 2017, for a reported £25 million fee.