What happened: Bob Boone, who set a major-league mark by catching 2,225 games across 19 seasons, has died at age 78. A cornerstone behind the plate for nearly two decades, he established a reputation as one of baseball's most durable catchers. He was part of a prominent three-generation baseball family that included his father Ray and sons Aaron, Bret, and Matt.

Why it matters: Boone's longevity redefined durability at the position, setting a games-caught milestone that stood for years. His influence continues through his son Aaron, who manages the New York Yankees. The Boone family remains one of the few three-generation dynasties in major-league history.

What to watch: Major League Baseball and its clubs will issue tributes honoring Boone's career and legacy. The Boone family and the Yankees are expected to share further details regarding memorial services.