An inspiring, gutsy handbook for success from the first woman to ever coach in the NFL When Jen Welter became a linebackers coach for the Arizona Cardinals in 2015, she was the first woman to ever break the glass sideline of the NFL. In Play Big , Welter reveals the grit that it took to be a trailblazer in the ultimate boys' club. Pre-NFL, Welter was an undersized, underestimated athlete who made sacrifice after sacrifice to achieve her football dreams — rising to the top of women's football leagues and eventually daring to play against men twice her size. lays out how she succeeded despite the odds, through force of will and determination, revealing the wisdom Welter gained over countless setbacks and challenges. With vivid wit and candor, Play Big will coach you to do the same — whatever your obstacles might be — while translating Welter's hard-earned advice for cultivating true perseverance and toughness.