San Francisco 49ers tight end George Kittle jokingly threatens to retire after learning the NFL is banning smelling salts.

George Kittle put the NFL on notice when breaking news on Tuesday. The San Francisco 49ers tight end interrupted a live NFL ...

Smelling salts appear to be an integral part of Kittle's football routine. The NFL is probably doing him a favor.

On Tuesday, the NFL sent a memo out to its teams stating that the league is banning ammonia inhalants, colloquially known as ...

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

#49ers George Kittle just crashed our set to break news that the NFL banned smelling salts and ammonia packets today. Says he ...

Kittle crashed linebacker Fred Warner's interview and according to NFL Media's Mike Garafolo broke news that the NFL is ...

Is George Kittle considering retirement? Well, not really, but the 49ers tight end did tell NFL Network’s Mike Garafolo that ...

#49ers George Kittle just crashed our set to break news that the NFL banned smelling salts and ammonia packets today. Says he ...

According to Garafolo, San Francisco 49ers tight end George Kittle said he used smelling salts and ammonia packets on every ...

This article was originally published on www.si.com as George Kittle Jokes That He ‘Considered Retirement’ Due to Recent NFL ...

Are smelling salts being banned by the NFL? Here's what Kittle shared about the news, and why players have used them in the ...