On Tuesday, the NFL sent a memo out to its teams stating that the league is banning ammonia inhalants, colloquially known as smelling salts, effective immediately. While 49ers star Fred Warner was being interviewed live on NFL Network, Kittle barged in to effectively break the news about the new ban — and have his version of Festivus in August.

The NFL is banning the use of smelling salts and ammonia packets before and during all games, a ruling that has upset 49ers TE George Kittle.

The NFL has reportedly done away with a staple of its locker rooms and sidelines for decades. On Tuesday, star 49ers tight end George Kittle crashed the NFL Network's training camp set in Santa Clara to break the news that the league just put a ban on smelling salts and ammonia packets.

The 49ers are set to host the Broncos for a single joint practice this week. Kyle Shanahan explained why he prefers one session instead of two.

Through the San Francisco 49ers' first week and a half of practices, there are concerns about depth and the hope that first-year and inexperienced players can step into big roles.

The revolving door at wide receiver for the 49ers continued spinning on Tuesday. The team announced that they have signed Equanimeous St. Brown and released Andy Isabella. The move comes days after they signed Isabella and cut St.