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Manchester City's Argentinian striker Sergio Aguero (L) recoils after being hit in the face by a ball kicked by teammate Manchester City's Belgian defender Vincent Kompany (C) during a team training session at the City Football Academy in Manchester, north west England, on March 14, 2016. City play Dynamo Kiev in a Champions League last 16, second leg football match at the Etihad Stadium on March 15. / AFP / OLI SCARFF (Photo credit should read OLI SCARFF/AFP/Getty Images)

Manchester City's Argentinian striker Sergio Aguero (L) recoils after being hit in the face by a ball kicked by teammate Manchester City's Belgian defender Vincent Kompany (C) during a team training session at the City Football Academy in Manchester, north west England, on March 14, 2016.
City play Dynamo Kiev in a Champions League last 16, second leg football match at the Etihad Stadium on March 15. / AFP / OLI SCARFF        (Photo credit should read OLI SCARFF/AFP/Getty Images)