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(L-R) Argentina's Leonardo Mayer, Federico Delbonis, Guido Pella, Juan martin del Potro and coach coach Daniel Orsanic are seen in the backround near the trophy after winning the Davis Cup World Group final between Croatia and Argentina on November 27, 2016 at the Arena hall in Zagreb. / AFP / - (Photo credit should read -/AFP/Getty Images)

(L-R)  Argentina's Leonardo Mayer, Federico Delbonis,  Guido Pella, Juan martin del Potro and coach coach Daniel Orsanic are seen in the backround near the trophy after winning the Davis Cup World Group final between Croatia and Argentina on November 27, 2016 at the Arena hall in Zagreb.  / AFP / -        (Photo credit should read -/AFP/Getty Images)