Pregnant Brittany Mahomes continues to slay her sideline style. Brittany, 29, attended husband Patrick Mahomes’ Sunday Kansas City Chiefs game against the Buffalo Bills. She was pictured arriving at New York’s Highmark Stadium alongside brother-in-law Jackson.

As always, Brittany Mahomes was in attendance for Sunday's game between the Kansas City Chiefs and the Buffalo Bills. Unfortunately for the two-time defending champions, they suffered their first loss of the season after going 9-0 to start the campaign.

Brittany Mahomes is wrapping it up. The soon-to-be mom of three attended the Kansas City Chiefs vs. Buffalo Bills game on Sunday in a striped Bottega Veneta set, her hair tied up in a sweet style. Mahomes, 29, supported husband Patrick at Highmark Stadium in the luxury label’s button-up jacket ($3,900) and wide-leg pants ($1,300).