Sickle cell trait, a blood disorder which can affect endurance, was a factor in playing 25 minutes in Kentucky's victory over Boise State.
When asked about how he might have posted a triple-double if he played more minutes, Cauley-Stein said, "I was having a sickle cell problem. My chest starts to hurt."
Apparently, it's a recurring issue.
"Some days, just randomly, I've had real bad chest pain," he said. "I can't, like, breathe and my heart rate won't come down. I have to stop and wait for it to come down."