Michael Delle Donne is an NFL Players Association (NFLPA) Certified Contract Advisor and football agent with STACK FOOTBALL, a sports representation firm based in Whippany, New Jersey. Certified by the NFLPA since 2021, he represents professional football players in contract negotiations, career planning, and player advocacy. Since becoming certified, Delle Donne has negotiated multiple NFL player contracts while building his presence within the football representation industry. Before launching his career as an independent NFL agent, Delle Donne gained experience working with established player representation firms, including UA Sports, where he expanded his expertise in athlete recruitment, contract negotiations, and client development. Early in his career, he successfully represented New Orleans Saints kicker Blake Grupe following his entry into the NFL as an undrafted free agent, demonstrating his ability to identify and support emerging talent. At STACK FOOTBALL, Delle Donne focuses on providing personalized representation tailored to each athlete's professional goals. His services extend beyond negotiating playing contracts to include career guidance, relationship management, and long-term planning, with an emphasis on helping players maximize opportunities both on and off the field. As a growing presence among NFLPA-certified agents, he continues to develop his client base through a hands-on approach centered on accessibility, trust, and individualized service.