The PGA Tour is changing its format so that eight of its top events outside of the majors will have smaller, limited fields and no longer feature 36-hole cuts.
These are known as designated events, and they have larger purses as the PGA Tour attempts to keep players from defecting to LIV Golf.
PGA Tour commissioner Jay Monahan says the revamp will “deliver substantial, can’t-miss tournaments for the fans”.
Rory McIlroy said he “loves” the move, but the breakaway LIV series and its players have mocked it.
The LIV series, which is backed by Saudi Arabia’s Public Investment Fund (PIF) to the tune of $2 billion (£1.65 billion), features 48-player fields divided into 12 teams and no cuts.
“The highest form of flattery is imitation. PGA Tour, congratulations. Hello and welcome to the future, “LIV sent out a tweet.
The four majors – the Masters, US Open, Open Championship, and PGA Championship – as well as the Players Championship will continue to have full fields and cuts.