SANTA CLARA — Linebackers Fred Warner and Dre Greenlaw, plus top draft pick Javon Kinlaw, missed their first practice since camp opened two weeks ago, meaning half of the 49ers’ projected starters were unavailable two weeks before the season opener.
There was no immediate word from the 49ers on why Warner, Greenlaw and Kinlaw were no-shows.
Tight end George Kittle (hamstring) caught passes from a ball machine as practice began but remains out.
Also out were defensive ends Nick Bosa (leg) and Dee Fo. . .