Tom Kowalski is reporting that 18 players missed practice today, including Shaun Hill, Calvin Johnson, Nate Burleson and Bryant Johnson, Jahvid Best, Kevin Smith, Brandon Pettigrew, Will Heller, Jeff Backus, Stephen Peterman, Kyle Vanden Bosch, Corey Williams, Andre Fluellen, Zack Follett, Alphonso Smith, Nathan Vasher and Louis Delmas.
On the bright side, Matthew Stafford did take part in practice, which means he should be ready to go for the Redskins game in a couple of weeks.
Lastly, the Lions also have a couple of open roster spots as they have released cornerbacks Dante Wesley and Paul Pratt. Cornerback Jack Williams was activated from the PUP list yesterday and the Lions already had four other cornerbacks on the active roster.
UPDATE: Bobby Carpenter worked out for the lions. Carpenter, a former first round pick of the Cowboys, was cut by the Dolphins earlier in the week.