The Kansas City Chiefs are one of the hottest teams in the NFL this year with second-year quarterback Patrick Mahomes leading the way for what could be the best team in the AFC. Although the team finished this past week with another win at the expense of the lowly Arizona Cardinals, Sunday was a sad day for Mahomes and his family.

According to Mahomes' girlfriend Brittany Matthews, who posted on her Instagram account on Sunday, there was a death in the family. Matthews' stepfather Paul Massey passed away after collapsing outside Arrowhead Stadium.

https://www.instagram.com/p/BqDyz8Oh5YO/

The Chiefs have yet to make a statement on the passing of Massey. Mahomes also has yet to address the passing of his girlfriend's stepfather publicly.

As a result of the team's win over the Cardinals, Kansas City remains atop the AFC West division while holding off the red-hot Los Angeles Chargers who won their sixth straight game on Sunday. Mahomes and company are well on their way to winning the division title if they can continue to dominate the competition and they have shown no signs of slowing down.

Mahomes kept playing at a high level this past Sunday throwing for 249 yards, two touchdowns, and zero interceptions. The young quarterback continues to prove his worth as Andy Reid's go-to guy under center while making a strong case for NFL MVP in only his sophomore campaign in the league.

Kansas City will face the Los Angeles Rams in Week 11 in what could very well be a Super Bowl preview. The game will be played in Mexico City at Estadio Azteca.