The Davis Cup will use fifth-set tiebreakers beginning next year.
The International Tennis Federation approved the change for the men’s team competition Friday at its annual meeting in the Chilean capital.
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Earlier this year, Leonardo Mayer of Argentina and Joao Souza of Brazil were involved in the longest Davis Cup singles match on record. The match lasted 6 hours, 42 minutes, forcing the best-of-five series to be extended to a fourth day.
The fifth set alone lasted 2 hours, 30 minutes before Mayer clinched the match 7-6 (4), 7-6 (5), 5-7, 5-7, 15-13.
The Davis Cup has had tiebreakers in all sets except for the fifth since 1989.