Jason Day has pulled out of the 2024 Players Championship because of a mystery illness, the PGA Tour has confirmed. The golfer, who won the tournament back in 2016, was supposed to start the event with Wyndham Clark and Jordan Spieth, but he was replaced by Danny Walker instead. Day only recently tied for eighth place at the Arnold Palmer Invitational. While he has experienced vertigo in the past, it's not certain whether this is the reason for his withdrawal.