Phil Mickelson sparks controversy as four players tie for US Open lead

    By Rob Hodgetts, CNN

    Updated 1814 GMT (0214 HKT) June 17, 2018

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    Brooks Koepka became the seventh man to win back-to-back US Open titles after overcoming a testing and controversial week at Shinnecock Hills.
    Photos: US Open 2018
    Brooks Koepka became the seventh man to win back-to-back US Open titles after overcoming a testing and controversial week at Shinnecock Hills.
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    The 28-year-old Floridian beat England's Tommy Fleetwood by one shot with world No.1 Dustin Johnson two back and Masters champion Patrick Reed three adrift.
    Photos: US Open 2018
    The 28-year-old Floridian beat England's Tommy Fleetwood by one shot with world No.1 Dustin Johnson two back and Masters champion Patrick Reed three adrift.
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    Koepka is the first player since Curtis Strange in 1988 and 1989 to win back-to-back US Open titles.
    Photos: US Open 2018
    Koepka is the first player since Curtis Strange in 1988 and 1989 to win back-to-back US Open titles.
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    Despite having at least a share of the lead at the end of each of the first three rounds, Johnson was unable to add a second US Open title to 2016's breakthrough major win.
    Photos: US Open 2018
    Despite having at least a share of the lead at the end of each of the first three rounds, Johnson was unable to add a second US Open title to 2016's breakthrough major win.
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    Fleetwood took advantage of the USGA's kinder set-up following a controversial Saturday to shoot only the sixth 63 in US Open history 45 years after Johnny Miller posted the first in 1973 at Oakmont.
    Photos: US Open 2018
    Fleetwood took advantage of the USGA's kinder set-up following a controversial Saturday to shoot only the sixth 63 in US Open history 45 years after Johnny Miller posted the first in 1973 at Oakmont.
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