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Lazio's forward Balde Diao Keita from Senegal kicks the ball during the Italian Serie A football match between Lazio Rome and Palermo on November 22, 2015 at the Olympic stadium in Rome. AFP PHOTO / GABRIEL BOUYS (Photo credit should read GABRIEL BOUYS/AFP/Getty Images)

Lazio's forward Balde Diao Keita from Senegal kicks the ball during the Italian Serie A football match between Lazio Rome and Palermo on November 22, 2015 at the Olympic stadium in Rome.  AFP PHOTO / GABRIEL BOUYS        (Photo credit should read GABRIEL BOUYS/AFP/Getty Images)

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Lazio's Senegalese forward Balde Diao Keita celebrates after scoring a goal during the Serie A football match between Lazio and Fiorentina at Olympic Stadium in Rome on December 18, 2016. / AFP / TIZIANA FABI (Photo credit should read TIZIANA FABI/AFP/Getty Images)

Lazio's Senegalese forward Balde Diao Keita celebrates after scoring a goal during the Serie A football match between Lazio and Fiorentina at Olympic Stadium in Rome on December 18, 2016.  / AFP / TIZIANA FABI        (Photo credit should read TIZIANA FABI/AFP/Getty Images)

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Balde Diao Keita of Lazio during the Serie A match between Lazio and Milan at Stadio Olimpico, Rome, Italy on 13 February 2017. Photo by Giuseppe Maffia. (Photo by Giuseppe Maffia/NurPhoto via Getty Images)

Balde Diao Keita of Lazio during the Serie A match between Lazio and Milan at Stadio Olimpico, Rome, Italy on 13 February 2017. Photo by Giuseppe Maffia. (Photo by Giuseppe Maffia/NurPhoto via Getty Images)

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Keita Balde during the Italian Serie A football match between S.S. Lazio and Fiorentina at the Olympic Stadium in Rome, on december 18, 2016. (Photo by Silvia Lore/NurPhoto via Getty Images)

Keita Balde during the Italian Serie A football match between S.S. Lazio and Fiorentina at the Olympic Stadium in Rome, on december 18, 2016. (Photo by Silvia Lore/NurPhoto via Getty Images)

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Balde Diao Keita of Lazio during the Serie A match between Lazio and Milan at Stadio Olimpico, Rome, Italy on 13 February 2017. Photo by Giuseppe Maffia. (Photo by Giuseppe Maffia/NurPhoto via Getty Images)

Balde Diao Keita of Lazio during the Serie A match between Lazio and Milan at Stadio Olimpico, Rome, Italy on 13 February 2017. Photo by Giuseppe Maffia. (Photo by Giuseppe Maffia/NurPhoto via Getty Images)