In addition to Ndamukong Suh, who is still without a contract, the following players did not participate in today's practice:
TE Brandon Pettigrew
TE Will Heller
DE Jared DeVries
CB Jack Williams
S Ko Simpson
S Louis Delmas
I'm not sure if this is what the PUP list looks like as the team hasn't sent out an announcement yet, but unless these players are dealing with minor injuries, they probably are going to be out for more than a day or so. I will update the story when the PUP list is confirmed by the Lions.
UPDATE: The six players listed above are in fact on the PUP list.