Former world number one Jason Day has withdrawn from the International Team for next month's Presidents Cup due to a back injury.
Day, who was chosen by captain Ernie Els as a wild card, has been replaced by South Korean Byeong Hun An for the biennial contest against the United States at Royal Melbourne from December 12-15.
"I'm quite disappointed I won't be coming home to play in either the Australian Open in Sydney or the Presidents Cup the following week in Melbourne," Day said in a statetment. "I was quite looking forward to both events.
"I had been prepping all week in Palm Springs when I was injured. Frustratingly, I've been through back problems before and my medical team decided it best to shut down all practice and play."
An, who won the BMW PGA Championship in 2015, added: "I'm sorry to hear that Jason has been forced to withdraw from the International Team and I wish him a speedy recovery.
"It was a huge surprise to receive a call from Ernie who told me that I was in the team. It has been a goal of mine all season to be on the International Team and I am honoured to play in my first Presidents Cup."
