Tiger Woods and Rocco Mediate last met in a playoff in 2008

The USGA stated in 2018 that a two-hole aggregate playoff will replace the conventional 18-hole playoff

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The adjustment was made to guarantee that a champion be crowned on Sunday, the tournament's final day

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Players finish two holes in a two-hole aggregate playoff, and their combined score decides the winner

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If there is still a tie after the two playoff holes, the winner is determined by the first player to win a hole outright

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The new format places an emphasis on concentration and pressure on every shot within those two holes

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The earlier model allowed for ups and downs during the course of a round, generating an electrifying environment for supporters

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The format of the US Open playoffs has changed in previous years

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