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

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

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

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

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

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

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