No word yet on what the exact violation was.
This isn't a good situation for the Titans, who were already thin at linebacker. Thornton will miss the first four games which puts his return on Oct. 4.
He can participate in training camp and all preseason games.
What does SB Nation's Titans community, Music City Miracles, have to say? "Well the fun just keeps on coming."
I am not sure if this is a PED thing or another drug, but what I do know is that it really screws the Titans at linebacker. I guess they better pray that David Thornton is going to be able to come back at 100%.
Thornton is currently rehabbing from shoulder surgery. One option to consider is re-signing veteran Keith Bulluck. Though they play different positions, the Titans are linebacker-needy.
McRath was the Titans fourth round pick in 2009.
For more, check out SB Nation's Music City Miracles.