After a 25-day break, the Kansas City Chiefs' starters will be back in action on Saturday against the Houston Texans at Arrowhead Stadium in a duel for a place in the AFC Championship Game.

Because the Chiefs haven’t lost a fumble in that run, the run of games without a turnover stands at eight. Ball security is high on the list of why the Chiefs went 15-2 during the regular season, won a playoff game for the seventh straight year and are meeting the Buffalo Bills in Sunday’s AFC Championship Game.

Who is playing in the AFC championship game this year? Two teams with three playoff matchups in the last four years meet again in AFC title game.

Obviously, the usual suspects -- quarterbacks Josh Allen and Patrick Mahomes, among others -- will have a big say in which will go on to represent the AFC in the Super Bowl. But each team also has an X factor who will also loom large in Sunday's outcome. Let's take a look at each team's X factor, starting with the two-time defending champs.

Buffalo Bills cornerback Christian Benford cleared the concussion protocol and was active Sunday for the AFC championship game, where he was expected to play a

Buffalo Bills cornerback Christian Benford cleared the concussion protocol and was active Sunday for the AFC championship game, where he was expected to play a big role in helping to slow Patrick Mahomes and the Kansas City Chiefs' passing game.

Buffalo Bills cornerback Christian Benford was ruled out of the AFC title game against the Kansas City Chiefs on Sunday night with a concussion. Benford was carted from the field

(AP) — Buffalo Bills cornerback Christian Benford was ruled out of the AFC title game against the Kansas ... Chiefs tight ends Travis Kelce and Noah Gray.

CBS analyst JJ Watt tells viewers they're currently in "the Patrick Mahomes era" after Chiefs' AFC Championship Game victory.

Bills cornerback Christian Benford has been ruled out for the rest of the AFC championship game after sustaining his second concussion in two playoff games. Benford was carted to the locker room in the first quarter of Sunday night’s game in Kansas City after taking a hit to the head colliding

The Bills demonstrated remarkable resilience in the face of overwhelming adversity. In the most difficult moments, they made plays that just weren’t enough to make up for some of the elements that were out of their control,