We shouldn't require reminders. We should know, innately, that death plays no favorites, that not even the strongest escape this planet alive.
Somehow, though, death always jars us when it intersects with sports, making this one of the saddest and most jarring weekends in memory.
Friday morning, we learned that Twins legend Harmon Killebrew will end his battle with esophageal cancer and spend his remaining days in hospice care.
Friday night, we learned that former Wild enforcer Derek Boogaard had been found dead at his Minneapolis apartment.
The men shared few connections. Killebrew is 74 and those close to him, such as Jack Morris, expected this news. Even those far removed from Killebrew's inner circle realized that this form of cancer was particularly devastating, especially for a man of Killebrew's age.
Boogaard was 28 and those close to him worried about his recovery from a concussion. At 6-7 and 258 pounds, possessing the toughness of a man who made his living with jaw and fists, he would have seemed, to an outsider, invulnerable as Killebrew in his prime.
They are not invulnerable, though. Beneath the muscle and machismo of a pro athlete beat all-too-mortal hearts.
We shouldn't require these reminders, especially we Minnesotans. We followed Kirby Puckett's descent.