Marvin Miller, the union leader that created free agency and revolutionized professional sports with multi-million dollar contracts, died Tuesday at age 95.

He had been diagnosed with liver cancer in August.

In his 16 years as executive director of the MLBPA, starting in 1966, Miller fought owners on many fronts, winning free agency for the players in December 1975. He may best be remembered, however, as the man who made the word "strike" stand for a labor dispute.