Antonio Ethan Gates Sr. is an American former professional football player who was a tight end for the San Diego / Los Angeles Chargers during his entire career in the National Football League (NFL). He was named to the Pro Bowl eight times and was a six-time All-Pro selection. He retired on January 14, 2020, after 16 years with the Chargers.

The tight end (TE) is an offensive position in American football, arena football, and Canadian football. It is a hybrid that combines the characteristics and roles of both an offensive lineman and a receiver. As part of the receiver corps, they play inside the flanks (tight), contrasted with the split end who plays outside the flanks (wide). Like offensive linemen, they are usually lined up on the offensive line and are large enough to be effective blockers. On the other hand, unlike offensive linemen, they are eligible receivers and potent weapons in a team's offensive schemes.