Receiver Terry Glenn didn’t participate in offseason workouts this week.  But not because he thinks he’s not ready.

After missing 15 games in 2007 because of a knee problem, Glenn believes he’s able to get back on the practice field.

“Let’s just say I showed up Tuesday for meetings and . . . .,” Glenn said in a text message to the Fort Worth Star-Telegram.  “Ur gonna have to do the math.  I’m not going against management in the media.  But I want people to know I’m not practicing, not by my choice.”

Glenn and the Cowboys’ medical staff reportedly are at odds as to whether Glenn needs microfracture surgery, a coin-flip proposition aimed at creating scar tissue that simulates the cartilage that used to be present in the joint. 

Owner Jerry Jones agrees that Glenn is healthy enough to practice.  So why then isn’t he on the field?

It could be that the Cowboys believe it’s only a matter of time before Glenn’s knee gets “blowed up,” and the ‘Boys would then be on the hook for his $1.74 million salary in 2008.  Under this theory, the Cowboys would cut Glenn, after they have a replacement in the fold.

And that’s really the thing to keep an eye on.  With June 1 coming up, it’s possible that the Cowboys have laid the foundation for a trade that will be accomplished on June 2, allowing the cap hits for any players involved in the transaction (Cowboys safety Roy Williams, for example) to be spread over two cap years.