The Cowboys originally put Livings on season-ending injured reserve after he had the second arthroscopic surgery on his right knee in the past six months during training camp.
Dallas still has to pay Livings $1.7 million this season. He signed a five-year contract with the Cowboys last year and started all 16 games in 2012. But Dallas had the worst per-game rushing average in team history last season, and Tony Romo was sacked a career-high 36 times for the second straight year.
The Cowboys also released defensive tackle Travis Chappelear.
Source: Associated Press