Cowboys linebacker Greg Ellis has been a bit on the moody side lately.  Last year, he was miffed about his contract.  This time around, he’s upset with his role in offseason workouts.

Per the Dallas Morning News, Ellis has been staying away from voluntary practices this week because he hasn’t gotten enough reps in the helmets-and-shorts sessions.

The team claims that it’s merely trying to reduce wear and tear on Ellis, and to give 2007 first-rounder Anthony Spencer some additional reps. 

Citing an unnamed source, the Morning News says that Ellis doesn’t trust the team’s motives.

In other words, Ellis apparently thinks that the team is trying to get Spencer ready in order to justify bouncing Ellis from the starting lineup, and/or from the team.

Ellis is under contract for two more years, at base salaries of $3.325 million in 2008 and $4.15 million in 2009.