"I've never had anything wrong with my knees before. So I've never experienced anything like this.
"But I definitely felt something. I knew something was wrong."
A month has passed since surgery to repair an ACL tear that has once again put the uniquely gifted young Finnish defenceman - who most definitely had a bead on a day-to-day job among the Flames' top six this year - on the road to recovery.
After being sidelined by a high-ankle sprain for an extended period last season, limiting him to 24 regular-season starts here and another 20 at AHL Stockton, this relatively recent turn of events seems particularly cruel, unfair.
Valimaki had returned from the ankle issue - always an injury with no finite recovery timeline - to make his post-season debut and and after a highly-productive off-season of conditioning and preparation, he seemed poised to begin his top-flight career in earnest.
"Yeah, I've been through (rehab) before," he says, "so you know: 'OK, it's a process. I've got to through it.' But in my case right now, I'd say that makes this harder. If I would've played all year last year, been healthy, prove to myself a little bit more, prove to everybody else a little bit more, been able to enjoy it a little bit more … maybe this would be a little easier. Maybe."
Valimaki, the 16th-overall selection in 2017 armed with a poise, an unflappable on-ice demeanour, far beyond his years, ranks high among the organization's most ready-for-primetime assets.