Kansas City Chiefs quarterback Patrick Mahomes has enjoyed great success over the course of his six NFL seasons. The quarterback has won two Super Bowls and is a two-time league MVP.

Mahomes, probably many athletes, can attribute some of his success to deep-seated superstition.

Veteran signal caller Chad Henne, who announced his retirement after Super Bowl LVII, shed some light on a certain pair of underwear that holds unique significance for Mahomes.

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Kansas City Chiefs quarterback Patrick Mahomes listens to the plays during the first half of an NFL preseason game against the Chicago Bears on Saturday, Aug. 13, 2022, in Chicago. (AP Photo/David Banks)

During a recent appearance on «The Adam Schefter Podcast,» Henne said Mahomes’ superstitions stemmed from his days as a baseball player. One of the most notable and peculiar parts of Mahomes’ routine is wearing the same underwear to every game.

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«He has to have a certain thing every day when he comes in,» Henne said. «He does his job. His notes are written a certain way. The same pair of underwear on game day, which probably not many people know about. He’s been wearing it since I was (on the team)… Sunday, it’s the same pair.»

Chad Henne #4 of the Kansas City Chiefs celebrates after defeating the Philadelphia Eagles 38-35 in Super Bowl LVII at State Farm Stadium on February 12, 2023 in Glendale, Arizona.

Chad Henne #4 of the Kansas City Chiefs celebrates after defeating the Philadelphia Eagles 38-35 in Super Bowl LVII at State Farm Stadium on February 12, 2023 in Glendale, Arizona. (Christian Petersen/Getty Images)

Henne was with the Chiefs from 2018 until last season. Mahomes was selected in the first round of the 2017 draft.

During their five years together, Henne served as Mahomes’ backup and the pair were likely able to get to know each other well.

Henne did not elaborate on how often Mahomes washes the underwear. And he might be in the best interest of the general public not to know about it.

Kansas City Chiefs quarterback Patrick Mahomes holds the Vince Lombardi Trophy after the NFL Super Bowl 57 football game against the Philadelphia Eagles, Sunday, February 12, 2023, in Glendale, Arizona.

Kansas City Chiefs quarterback Patrick Mahomes holds the Vince Lombardi Trophy after the NFL Super Bowl 57 football game against the Philadelphia Eagles, Sunday, February 12, 2023, in Glendale, Arizona. (AP Photo/Brynn Anderson)

Whether the bizarre habit has any impact on actual football, Mahomes has continued to make strides in the biggest moments.

Mahomes helped lead the Chiefs to a 38-35 comeback victory over the Eagles last Sunday. He threw for 182 yards and three touchdowns on the night.

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Kansas City has hosted the last five consecutive AFC championship games. Since Mahomes has been the starting quarterback, the Chiefs have appeared in three Super Bowls.