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Celta Vigo's Argentinian coach Eduardo Berizzo (C) leads a training session at the training ground in A Madroa, outskirts of Vigo, on May 3, 2017, on the eve of the UEFA Europa League semi-final football match against Manchester United. / AFP PHOTO / MIGUEL RIOPA (Photo credit should read MIGUEL RIOPA/AFP/Getty Images)

Celta Vigo's Argentinian coach Eduardo Berizzo (C) leads a training session at the training ground in A Madroa, outskirts of Vigo, on May 3, 2017, on the eve of the UEFA Europa League semi-final football match against Manchester United. / AFP PHOTO / MIGUEL RIOPA        (Photo credit should read MIGUEL RIOPA/AFP/Getty Images)