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MANCHESTER, ENGLAND - MARCH 16: United player Henrikh Mkhitaryan in action during the UEFA Europa League Round of 16 second leg match between Manchester United and FK Rostov at Old Trafford on March 16, 2017 in Manchester, United Kingdom. (Photo by Stu Forster/Getty Images)

MANCHESTER, ENGLAND - MARCH 16:  United player Henrikh Mkhitaryan in action during the UEFA Europa  League Round of 16 second leg match between Manchester United and FK Rostov at Old Trafford on March 16, 2017 in Manchester, United Kingdom.  (Photo by Stu Forster/Getty Images)

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MANCHESTER, ENGLAND - MARCH 16: Juan Mata of Manchester celebrates after scoring the opening goal during the UEFA Europa League Round of 16 second leg match between Manchester United and FK Rostov at Old Trafford on March 16, 2017 in Manchester, United Kingdom. (Photo by Ross Kinnaird/Getty Images)

MANCHESTER, ENGLAND - MARCH 16:  Juan Mata of Manchester celebrates after scoring the opening goal during the UEFA Europa  League Round of 16 second leg match between Manchester United and FK Rostov at Old Trafford on March 16, 2017 in Manchester, United Kingdom.  (Photo by Ross Kinnaird/Getty Images)

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TOPSHOT - Manchester United's Swedish striker Zlatan Ibrahimovic reacts during the UEFA Europa League round of 16 second-leg football match between Manchester United and FC Rostov at Old Trafford stadium in Manchester, north-west England, on March 16, 2017. / AFP PHOTO / Oli SCARFF (Photo credit should read OLI SCARFF/AFP/Getty Images)

TOPSHOT - Manchester United's Swedish striker Zlatan Ibrahimovic reacts during the UEFA Europa League round of 16 second-leg football match between Manchester United and FC Rostov at Old Trafford stadium in Manchester, north-west England, on March 16, 2017. / AFP PHOTO / Oli SCARFF        (Photo credit should read OLI SCARFF/AFP/Getty Images)

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MANCHESTER, ENGLAND - MARCH 16: Juan Mata of Manchester celebrates after scoring the opening goal during the UEFA Europa League Round of 16 second leg match between Manchester United and FK Rostov at Old Trafford on March 16, 2017 in Manchester, United Kingdom. (Photo by Ross Kinnaird/Getty Images)

MANCHESTER, ENGLAND - MARCH 16:  Juan Mata of Manchester celebrates after scoring the opening goal during the UEFA Europa  League Round of 16 second leg match between Manchester United and FK Rostov at Old Trafford on March 16, 2017 in Manchester, United Kingdom.  (Photo by Ross Kinnaird/Getty Images)

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MANCHESTER, ENGLAND - MARCH 16: Jose Mourinho, Manager of Manchester United reacts during the UEFA Europa League Round of 16, second leg match between Manchester United and FK Rostov at Old Trafford on March 16, 2017 in Manchester, United Kingdom. (Photo by Stu Forster/Getty Images)

MANCHESTER, ENGLAND - MARCH 16:  Jose Mourinho, Manager of Manchester United reacts during the UEFA Europa League Round of 16, second leg match between Manchester United and FK Rostov at Old Trafford on March 16, 2017 in Manchester, United Kingdom.  (Photo by Stu Forster/Getty Images)