HEAT'S ERIK SPOELSTRA BECOMES LONGEST TENURED ACTIVE COACH IN MAJOR U.S. SPORTS

Erik Spoelstra is now No. 1. And the Miami Heat coach isn't thrilled by that development. The end of Mike Tomlin's 19-year tenure as coach of the Pittsburgh Steelers on Tuesday meant Spoelstra — who has coached the Miami Heat since 2008 — is now the longest-serving among active coaches in the four biggest U.S. major sports leagues.

Spoelstra became the NBA coach with the longest active tenure when San Antonio's Gregg Popovich retired last year. And at that time, among those who manage in Major League Baseball or are head coaches in the NFL, NBA or NHL only Tomlin had been in his role longer than Spoelstra.

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