The Kansas City Chiefs and star guard Trey Smith on Tuesday agreed to a contract extension just before the franchise tag deadline. ESPN NFL insider Adam Schefter reported that the four-year contract worth $94 million makes Smith the highest-paid guard in NFL history."It’s the highest-average annual salary and the most guaranteed money ever awarded to an NFL guard," Schefter wrote on X.Kansas City announced the signing on Instagram shortly after."New suit ✔️ New contract ✔️ The same 65 💪" the post was captioned, alongside a set of photos of Smith signing. View this post on Instagram Instagram PostIn response to that post, San Francisco 49ers wide receiver Jauan Jennings congratulated Smith. Jennings and Smith were teammates for several seasons while playing college football for the Tennessee Volunteers."Real doggie activity brudda. congrats!" Jennings wrote on Instagram.Jauan Jennings' Instagram StoryWhere does Trey Smith's new contract rank amongst other NFL linemen?Smith has proven to be an elite guard for the Kansas City Chiefs. Although the Chiefs offensive line did struggle in 2024, Smith was one of the only consistent bright spots.Since entering the league, Smith has been one of the most durable players in the NFL and for the Chiefs. He has only missed one game in his NFL career, playing 17 games in three of his four seasons, according to Pro Football Reference.After signing his new contract, Smith is now the seventh highest-paid offensive lineman in football in terms of average annual value (AAV). However, the top six are offensive tackles, meaning Smith will be the highest-paid offensive guard in the league.According to 'Spotrac', Smith will earn an AAV of $23.5 million per season, with the next highest-paid offensive guard being the Philadelphia Eagles' Landon Dickerson at $21 million.