Exploiting Latin American country's reserves faces obstacles from decrepit infrastructure to leadership uncertainty.

NEW YORK: Naomi Osaka said using words like “no education” and “no class” to criticize a Black tennis player were among the worst things to say as the debate over a heated row between Taylor Townsend and Jelena Ostapenko raged on at the US Open on Thursday. Townsend, who is Black, overcame 2017 French Open champion Ostapenko 7-5, 6-1 in a tough second-round battle a day earlier. But the real tension came shortly after match point, when the pair verbally dueled at the net, with the Latvian repeatedly wagging her finger at the American.