IRVING, Texas -- Defensive tackle Tank Johnson has been working out regularly at Valley Ranch since signing a two-year deal with the Cowboys last month and getting cleared by the NFL to be at the facility.

Johnson is serving an eight-game NFL suspension for violating probation on a gun charge. Commissioner Roger Goodell has said the suspension could be reduced to six games.

Cowboys owner Jerry Jones said Johnson working out and being in an accountable program "addresses the chance of him getting back early."

In addition to physical workouts, Johnson is able to meet with the team's player assistance staff, headed by Calvin Hill.

"He's working to try and do the kind of work and make the kind of impression that would influence the commissioner and let him get back early," Jones said.

Johnson played the last three seasons for the Chicago Bears.

Copyright 2007 by The Associated Press