San Francisco 49ers star tight end George Kittle almost retired because of the league's ban on a popular substance.

San Francisco 49ers tight end George Kittle was distraught the NFL opted to ban amonia and smelling salts in a recent change, ...

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

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

On the same day George Kittle threatened retirement, the Saints claimed one of his backups off the waiver wire. Get to know ...

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

During Tuesday's San Francisco 49ers practice, tight end George Kittle made a surprise appearance during an NFL Network ...

Ammonia and smelling salts have long been used as a stimulant by NFL players as well as other athletes, though the risks that ...

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

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

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

The 49ers just finished Day 11 of training camp. It was the final practice before the 49ers have a joint session with the Denver Broncos on Thurs ...