Buffalo Sabres star Rasmus Dahlin just revealed his fiancée, Carolina Matovac, received a heart transplant this offseason ... detailing the traumatic experience that led up to the serious procedure in a letter to hockey fans.
The team shared Rasmus and Carolina's story on Friday morning ... with the defenseman stating his partner had felt sick for a few days before things took a dire turn.
"Fortunately, she received CPR on multiple occasions, and up to a couple of hours at a time to keep her alive, which ultimately saved her life," Rasmus wrote.