Rory McIlroy has backed the unpopular shorter ball proposal and may use it in PGA events even if it is not required.
Golf's governing bodies have long been grappling with the fact that professional player's distance is increasing all the time and in 2020, they revealed that they were looking into the matter.
Last week, the Local Model Rule was announced, which would give tournaments the option to require the use of golf balls that travel around 15 yards shorter.
