He played professionally as a guard in the National Football League (NFL) for the Houston/Tennessee Oilers, Miami Dolphins, and Carolina Panthers.
He is currently the Director of the Koman Game Plan for Success, a position that focuses on athlete development, for his alma mater, North Carolina.
But in August 2015, the program experienced an unexpected loss when offensive line coach, Phil Ratliff, passed away and Donnalley stepped in to replace him for the season.
[3] Once the season ended, a new offensive line coach was hired and Donnalley was finally able to move to player development.
[4] An alumnus of the University of North Carolina at Chapel Hill, Donnalley served under his former coach, Mack Brown.