Ralph Edward Cindrich (born October 29, 1949, in Washington, PA) is a sports agent and former NFL player. A linebacker for the New England Patriots (1972), the Houston Oilers (1973, 1974, 1975), and the Denver Broncos (1974), Cindrich graduated from the University of Pittsburgh in 1972 and South Texas College of Law in 1978. More than three-plus decades as an NFL agent, he has represented stars such as James Farrior, Bruce Gradkowski, Tarik Glenn, Jeff Blake, Brian Griese, Al Toon, Dermontti Dawson, Will Wolford, and Scott Zolak among others. As an agent, Cindrich also negotiated one of the landmark contracts in sports history, one that forever altered the salary hierarchy in the NFL and would be prominently featured in Michael Lewis' book The Blind Side: Evolution of a Game.