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LONDON, ENGLAND - APRIL 29: Lukas Nmecha of Manchester City is challenged by Joao Mario of West Ham United during the Premier League match between West Ham United and Manchester City at London Stadium on April 29, 2018 in London, England. (Photo by Victoria Haydn/Manchester City FC via Getty Images)

LONDON, ENGLAND - APRIL 29: Lukas Nmecha of Manchester City is challenged by Joao Mario of West Ham United during the Premier League match between West Ham United and Manchester City at London Stadium on April 29, 2018 in London, England.  (Photo by Victoria Haydn/Manchester City FC via Getty Images)

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Manchester City's German-born striker Lukas Nmecha (2nd R) vies with West Ham United's English midfielder Mark Noble (L), West Ham United's Senegalese midfielder Cheikhou Kouyate (C) and West Ham United's Portuguese midfielder Joao Mario (R) during the English Premier League football match between West Ham United and Manchester City at The London Stadium, in east London on April 29, 2018. (Photo by Ben STANSALL / AFP) / RESTRICTED TO EDITORIAL USE. No use with unauthorized audio, video, data, fixture lists, club/league logos or 'live' services. Online in-match use limited to 75 images, no video emulation. No use in betting, games or single club/league/player publications. / (Photo credit should read BEN STANSALL/AFP/Getty Images)

Manchester City's German-born striker Lukas Nmecha (2nd R) vies with West Ham United's English midfielder Mark Noble (L), West Ham United's Senegalese midfielder Cheikhou Kouyate (C) and West Ham United's Portuguese midfielder Joao Mario (R) during the English Premier League football match between West Ham United and Manchester City at The London Stadium, in east London on April 29, 2018. (Photo by Ben STANSALL / AFP) / RESTRICTED TO EDITORIAL USE. No use with unauthorized audio, video, data, fixture lists, club/league logos or 'live' services. Online in-match use limited to 75 images, no video emulation. No use in betting, games or single club/league/player publications. /         (Photo credit should read BEN STANSALL/AFP/Getty Images)

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MANCHESTER, ENGLAND - MAY 09: Lukas Nmecha of Manchester City in action during the Premier League match between Manchester City and Brighton and Hove Albion at Etihad Stadium on May 9, 2018 in Manchester, England. (Photo by Manchester City FC/Manchester City FC via Getty Images)

MANCHESTER, ENGLAND - MAY 09:  Lukas Nmecha of Manchester City in action during the Premier League match between Manchester City and Brighton and Hove Albion at Etihad Stadium on May 9, 2018 in Manchester, England.  (Photo by Manchester City FC/Manchester City FC via Getty Images)

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MANCHESTER, ENGLAND - MAY 04: Manchester City's Lukas Nmecha arrives at training at Manchester City Football Academy on May 4, 2018 in Manchester, England. (Photo by Tom Flathers/Manchester City FC via Getty Images)

MANCHESTER, ENGLAND - MAY 04: Manchester City's Lukas Nmecha arrives at training at Manchester City Football Academy on May 4, 2018 in Manchester, England. (Photo by Tom Flathers/Manchester City FC via Getty Images)

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NYON, SWITZERLAND - APRIL 20: #9 Lukas Nmecha of Manchester City scores goal against #1 Goalie Ignacio Pena of FC Barcelona during the semi-final football match between Manchester City and FC Barcelona of UEFA Youth League at Colovray Sports Centre on April 20, 2018 in Nyon, Switzerland. (Photo by Monika Majer/Getty Images)

NYON, SWITZERLAND - APRIL 20: #9 Lukas Nmecha of Manchester City scores goal against #1 Goalie Ignacio Pena of FC Barcelona during the semi-final football match between Manchester City and FC Barcelona of UEFA Youth League at Colovray Sports Centre on April 20, 2018 in Nyon, Switzerland. (Photo by Monika Majer/Getty Images)