Wouldn't be surprised if he did that when he fell. I understand he hit is rubs, possible fracture? Don't know.
This I know, the guy has a lot of high risk factors for dying early - being obese/poor diet, smoking, drinking.
I had a guy in my foursome about Daly's age die of a heart attack. He was smoking on every hole, and the humidity was pretty tough. We were walking and he needed to stop on about the 10th hole to sit in the shade and all of a sudden went in the full blown heart attack losing consciousness and dying right there despite CPR and a late arriving ambulance crew.
Daly needs to take this as a warning sign to get himself into better shape even if it was related to dehydration. But knowing him, he'll continue on with his current lifestyle and all the risk factors.....