The Bryan brothers have been crowned Olympic men's doubles champions after they beat Michael Llodra and Jo-Wilfried Tsonga of France in straight sets.
The American top seeds broke in the first game of the first set on their way to a 6-4 win.
Both teams held serve in the second before the siblings came out on top 7-2 in the tie-break.
Richard Gasquet and Julien Benneteau claimed the bronze medal earlier in the day with a win over Spain's David Ferrer and Feliciano Lopez.