Josh SamuelsJosh Samuels in USA Water Polo's Olympic opener vs. CroatiaCaptain Kelly Griffin (left) leads USA Rugby onto the fieldJessie Fleming (bottom right) & Canada beat Zimbabwe 3-1Nirra Fields scores in Canada's win over ChinaNirra FieldsUSA women's volleyball head coach Karch KiralyKarch Kiraly USA Volleyball celebrates a win over Puerto Rico UCLA goalkeeper coach Aline Reis celebrates with Brazil