Sleep became Boyle's primary concern after the hit.
"Right after the concussion, for the first two weeks, I was sleeping all the time. Couldn't stay awake," Boyle said. "I'd go to sleep at 7:30 at night, sleep all day, sleep all night. After that, I hit another phase, which is common with some concussions."
Meals were also an issue.
"I wasn't eating. My wife was concerned," Boyle said. "I wasn't sleeping, I wasn't eating, I wasn't feeling good."
Still, Boyle tried to play through it even with only one or two hours sleep each night.
"At first, you can get through a couple games," he said, "but when you're two months in, I'm telling you, you're walking around like a zombie. It was really hard."
Boyle's game suffered.
"I was a second slow out there -- everything, my stride, my reaction time. Everything was just a little slow," he said. "And that's all it takes. All it takes in this game is just half a second. And it was creating a lot of problems."