Jiri Kulich knew something wasn’t right.
Dizziness. Fatigue. Sluggishness. Fuzzy memory. He was 21, in peak physical shape and early in his second NHL season, but Kulich just felt off – on the ice, at the grocery store and everywhere in between.
Things reached a breaking point on Nov. 1, 2025, in a Sabres win over the Capitals. He took just one shift in the third period that night, and it turned out to be the final shift of his season.
“The last game against Washington, I didn’t even know I’m on the ice. I actually felt like a ghost,” Kulich recalled. “And then I picked the puck behind the net, and I left it in front of our net and just kept skating.
"I’m like, ‘Oh, yeah, there’s definitely something going on with me.’”
A CT scan revealed a blood clot, unexpected and rare for someone his age. Most likely, it stemmed from a March 15, 2025, hit by Vegas’ Brett Howden – Kulich entered concussion protocol at the time – and was exacerbated during August 2025 offseason training. Symptoms emerged after a hit during one of his skates that summer.





















