Congratulations to Patrick Mahomes and his wife, Brittany. The first family of the NFL announced Friday that they are expecting another baby. And you can call it a three-peat. It means that Sterling and Bronze will get a new baby brother or sister sometime at the end of football season as the Chiefs try for three Super Bowls in a row. Brittany Mahomesposted a family photo and a video to her Instagram to announce the sweet family news. She captioned it “Round three, here we come.” In the video, Sterling, the couple’s oldest, showed off a copy of her mother’s ultrasound. Yes, you can say it. Aww…