Becky Hammon on mentor Gregg Popovich stepping down as Spurs head coach: 'My heart's a little heavy for him'

Becky Hammon coached on Gregg Popovich's Spurs staff before transitioning to the WNBA. (Scott Wachter/USA TODAY Sports)USA TODAY Sports / ReutersLas Vegas Aces head coach Becky Hammon praised Gregg Popovich after he stepped down from coaching the San Antonio Spurs to become their full-time president.Popovich suffered a mild stroke in November that kept him from calling plays for the team the rest of the season, and he retires from coaching after 29 years on the job. Assistant coach Mitch Johnson