Kittle crashed linebacker Fred Warner's interview and according to NFL Media's Mike Garafolo broke news that the NFL is banning smelling salts and ammonia packets players use to refocus during games.

The San Francisco 49ers continue to make roster moves at wide receiver, as they trade out one 28-year-old wideout for another.

San Francisco 49ers rookie defensive lineman C.J. West may play a different position than Nick Bosa, but he's still watching every rep he takes.

Louisiana recently passed legislation banning kratom, but kava remains legal despite potential for addiction. What to know about herbal supplement.

At first it seemed like a strange decision by head coach Kyle Shanahan. He has consistently during his time as the 49ers head coach talked about how much more he values joint practices than preseason ...