Phil Mickelson has opened a war of words with a fellow Masters champion, accusing Fred Couples of a “low class jerk move” with comments relating to Brooks Koepka. Speculation has swirled for some time that Koepka, who joined the Saudi Arabian-backed LIV circuit in a $100m deal in 2022, is seeking a return to the PGA Tour. The lack of competitive rounds available on LIV is supposedly of concern to Koepka.