On March 11th, the sports world - led by the NBA - started to shut down. Coronavirus fears prompted the NCAA to cancel March Madness. The Masters was postponed. Baseball, hockey and basketball, put on hold. What followed was perhaps the quietest spell in modern sports history.  By midsummer, professional sports started to creep back to life and this past Thursday they reached a crescendo when all four major sports leagues - the NBA, NHL, NFL and MLB - held competition along with golf, tennis, women's basketball and more.  The loudest moments of all? Athletes' calls for social and racial justice after the police shooting of Jacob Blake in Milwaukee.  Major Garrett chronicles the last 6 months in the pandemic-plagued sports world. What we've lost. What we've gained. And how we've changed.