I'm not a golfer, obviously, but slicing a bunch of tendons due to a golf club shattering sounds like a pretty unlikely occurrence. But the power of a Claude Giroux slapshot/swing cannot be underestimated. Equipment made for a sport such as golf cannot handle the Giroux power.
According to reports out of Canada on Thursday, Flyers' franchise player Claude Giroux found a way to injure himself on the golf course and had surgery yesterday to repair the sliced tendons in his hand. He should have a recovery time of 5-6 weeks per GM Paul Holmgren who released the following statement:
"Philadelphia Flyers captain Claude Giroux had successful surgery this afternoon on his right index finger performed by Dr. Katherine Boyd at the Ottawa Civic Hospital in Ottawa, Canada. Giroux was golfing today when his golf club shattered and splintered into his index finger. Although there were no broken bones, there was some damage to his extensor tendons in his finger. He is expected to have a full recovery in 5-6 weeks."
Also, in an attempt to research golf clubs exploding in someone's hand I learned that explosions at golf clubs are quite common it would seem.