Defending Match Play champion Jason Day has conceded his match to Pat Perez after six holes, citing his mother's upcoming lung cancer surgery.
Speaking through tears, Day told reporters, "My mom has lung cancer. She's going in for surgery Friday. Hard to comprehend being on the golf course."
Day said his mother underwent tests in Australia and the doctor said she was terminal, but the "diagnosis is much better after coming over here [to the United States]."
"I'm glad I brought her here," Day said. "It's been really hard to play golf lately.