has reached so many NFL firsts since he became the ' starting quarterback three years ago -- and he is now on the verge of becoming the first quarterback to Jim McMahon Jersey reach this milestone in Sunday's AFC Championship Game. That is, if he's able to start this weekend.If Mahomes is able to clear concu sion protocol, he will become the first quarterback in NFL history to start three conference championship games in his first four seasons in the league. Mahomes would become the 12th quarterback since 1970 (the year the conference title games were formed) to start in three consecutive conference championship games and the first to reach the milestone in his first four years in the league.Mahomes needs just 101 pa sing yards to Jesse James Jersey move ahead of for the third-most playoff pa sing yards by a player in his first four seasons in NFL history. The only players with more Xavier Crawford Jersey postseason pa sing yards in their first four years are (2,328), Kurt Warner (2,221) and Luck (1,829). Mahomes has 1,729 pa sing yards in six postseason starts for the Chiefs, a franchise record. Mahomes has 14 touchdown pa ses in the postseason, the third most by a quarterback in his first four seasons in league history. He needs three touchdown pa ses to pa s Wilson (16) Chicago Bears Women Jersey for the most all-time and two to pa s Warner for second (15). Mahomes has completed 63.6% of his pa ses in the playoffs for 1,729 yards with 14 touchdowns and two interceptions for a 106.6 pa ser rating -- the highest pa ser rating in NFL playoff history. He's the only quarterback since 1950 to win 24 of 25 starts (including postseason), with the lone defeat coming this year (Week 5 against ).Will Mahomes be able to clear and start? That's still up in the air. "I would have to evaluate that as we go forward," Chiefs head coach Andy Reid said Chicago Bears Men Jersey to reporters Monday. "Let's just see how this whole thing rolls."