Gregg Popovich spoke publicly Monday for the first time since suffering a stroke six months ago, saying at the news conference where the San Antonio Spurs formally introduced Mitch Johnson as his replacement that the time was right to make that move.

Gregg Popovich explains his decision to step away as Spurs coach, and new coach Mitch Johnson speaks about stepping into the role.

The NBA shared photos and a video of Popovich's dramatic announcement. It involved the Spurs icon removing his jacket -- with the help of two Hall of Fame Players whom he coached to a combined nine championships -- which unveiled his new "El Jefe" title.