Coco Gauff loses an argument with the chair umpire and a match to Donna Vekic at the Paris Olympics

 NBC News Top StoriesCoco Gauff’s hopes for an Olympic medal in women’s tennis singles were dashed on Tuesday, when she failed to rally against Donna Vekic and had an argument with a chair umpire over a call.

​Coco Gauff’s hopes for an Olympic medal in women’s tennis singles were dashed on Tuesday, when she failed to rally against Donna Vekic and had an argument with a chair umpire over a call.  

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