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STOCKHOLM, SWEDEN - MAY 24: Henrikh Mkhitaryan of Manchester United and Jose Mourinho, Manager of Manchester United embrace after he is subbed during the UEFA Europa League Final between Ajax and Manchester United at Friends Arena on May 24, 2017 in Stockholm, Sweden. (Photo by Alex Grimm/Getty Images)

STOCKHOLM, SWEDEN - MAY 24: Henrikh Mkhitaryan of Manchester United and Jose Mourinho, Manager of Manchester United embrace after he is subbed during the UEFA Europa League Final between Ajax and Manchester United at Friends Arena on May 24, 2017 in Stockholm, Sweden.  (Photo by Alex Grimm/Getty Images)

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MANCHESTER, ENGLAND - DECEMBER 26: Manager Jose Mourinho of Manchester United speaks to Henrikh Mkhitaryan during the Premier League match between Manchester United and Sunderland at Old Trafford on December 26, 2016 in Manchester, England. (Photo by John Peters/Manchester United via Getty Images)

MANCHESTER, ENGLAND - DECEMBER 26:  Manager Jose Mourinho of Manchester United speaks to Henrikh Mkhitaryan during the Premier League match between Manchester United and Sunderland at Old Trafford on December 26, 2016 in Manchester, England.  (Photo by John Peters/Manchester United via Getty Images)

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Manchester United's Armenian midfielder Henrikh Mkhitaryan (R) shakes hands with Manchester United's Portuguese manager Jose Mourinho (2R) as he is substituted during the UEFA Europa League group A football match between Manchester United and Feyenoord at Old Trafford stadium in Manchester, north-west England, on November 24, 2016. / AFP / Oli SCARFF (Photo credit should read OLI SCARFF/AFP/Getty Images)

Manchester United's Armenian midfielder Henrikh Mkhitaryan (R) shakes hands with Manchester United's Portuguese manager Jose Mourinho (2R) as he is substituted during the UEFA Europa League group A football match between Manchester United and Feyenoord at Old Trafford stadium in Manchester, north-west England, on November 24, 2016. / AFP / Oli SCARFF        (Photo credit should read OLI SCARFF/AFP/Getty Images)

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Manchester United's Portuguese manager Jose Mourinho arrives with Manchester United's English striker Wayne Rooney (2L) and Manchester United's Armenian midfielder Henrikh Mkhitaryan for a team training session at the club's training complex near Carrington, west of Manchester in north west England on May 10, 2017, ahead of their UEFA Europa League semi-final second leg football match against Celta Vigo. / AFP PHOTO / Paul ELLIS (Photo credit should read PAUL ELLIS/AFP/Getty Images)

Manchester United's Portuguese manager Jose Mourinho arrives with Manchester United's English striker Wayne Rooney (2L) and Manchester United's Armenian midfielder Henrikh Mkhitaryan for a team training session at the club's training complex near Carrington, west of Manchester in north west England on May 10, 2017, ahead of their UEFA Europa League semi-final second leg football match against Celta Vigo. / AFP PHOTO / Paul ELLIS        (Photo credit should read PAUL ELLIS/AFP/Getty Images)

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Manchester United's Portuguese manager Jose Mourinho (L) gestures as he talks with Manchester United's Armenian midfielder Henrikh Mkhitaryan (C) and Manchester United's Portuguese first team coach Silvino Louro during a team training session at the club's training complex near Carrington, west of Manchester in north west England on May 10, 2017, ahead of their UEFA Europa League semi-final second leg football match against Celta Vigo. / AFP PHOTO / Paul ELLIS (Photo credit should read PAUL ELLIS/AFP/Getty Images)

Manchester United's Portuguese manager Jose Mourinho (L) gestures as he talks with Manchester United's Armenian midfielder Henrikh Mkhitaryan (C) and Manchester United's Portuguese first team coach Silvino Louro during a team training session at the club's training complex near Carrington, west of Manchester in north west England on May 10, 2017, ahead of their UEFA Europa League semi-final second leg football match against Celta Vigo. / AFP PHOTO / Paul ELLIS        (Photo credit should read PAUL ELLIS/AFP/Getty Images)