Pro football enters new era with distinctly female flair

Jen Welter walked from the sideline and shook hands with the line judge for the game between the Arizona Cardinals and Kansas City Chiefs.

This was no everyday meeting. More like a barrier-breaker.

Once a men's-only world, the National Football League entered a new era on Saturday night, when Welter became the first woman to coach an NFL game and Sarah Thomas became the first woman to work as a fulltime on-field official.