When the Detroit Lions begin their three-day voluntary minicamp on Tuesday, they will be minus Ndamukong Suh, according to the Associated Press.

Suh did not attend the first two weeks of conditioning workouts which were also voluntary.

A source told the Associated Press that Suh won’t participate in minicamp this week, but will attend the voluntary workouts in May and the mandatory minicamp in June.

In the past two weeks coach Jim Caldwell has made it clear he would like Suh to be in attendance at the voluntary sessions. Not only has the team worked on strength and conditioning, they have done classroom work with the new coaching staff to get familiar with the new schemes.

The Lions and Suh’s agent are working on a contract extension.

The Lions have been clear they expect it to get done. Suh's 2014 salary counts $20 million against the salary cap. When Matthew Stafford signed an extension in 2013, it didn’t happen until early July. Stafford, though, did not miss any voluntary workout sessions.

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