Clay Matthews will miss his sixth training camp practice today. The first five were due to a knee problem. Today, it's due to an elbow injury.
McCarthy on injuries: David Bakhtiari (knee) is on a program that will keep him out a week. Clay Matthews won't practice today (elbow).
— Green Bay Packers (@packers) August 19, 2015
It might be time to just shut Clay down until the opening game against the Bears.
In addition to Clay's injury, as mentioned in the Packers' Tweet above, David Bakhtiari will miss at least a week working through his own knee issue.