Brad Rock: Donovan Mitchell's All-Star campaign starts now

Utah Jazz guard Donovan Mitchell, left, looks to Houston Rockets guard James Harden in Salt Lake City on Sunday, May 6, 2018, during last year's playoffs.Ravell Call, Deseret News HOUSTON — Exceptional as Donovan Mitchell is, as high his ceiling, the Jazz guard enters Sunday's playoff opener still relatively unknown. He has a signature shoe, an NBA League Pass commercial and a smile that could launch a fleet of Larry H. Miller cars.What he doesn't have is high visibility beyond the NBA. He