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ESTORIL, PORTUGAL - APRIL 30: Alexei Popyrin from Australia walks on the court during the match of Round 1 between Joao Sousa from Portugal and Alexei Popyrin from Australia for Millennium Estoril Open 2019 at Clube de Tenis do Estoril on April 30, 2019 in Estoril, Portugal. (Photo by Gualter Fatia/Getty Images)

ESTORIL, PORTUGAL - APRIL 30: Alexei Popyrin from Australia walks on the court during the match of Round 1 between Joao Sousa from Portugal and Alexei Popyrin from Australia for Millennium Estoril Open 2019 at Clube de Tenis do Estoril on April 30, 2019 in Estoril, Portugal. (Photo by Gualter Fatia/Getty Images)
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Getty Images Sport Gualter Fatia