After suffering his second concussion of the season, linebacker Clint Session missed the final seven games of the 2011 NFL season. It's been seven months and Session is apparently still having problems with concussions as Mike Mularkey told media today that he has been designated to the physically unable to perform list.

Despite reports in early April that Session finally shook the concussion symptoms that claimed the latter half of his 2011 season, Mularkey told the media that the problems have not yet subsided.

"It's definitely a concern," Mularkey told Mark Long of the Associated Press.

While Mularkey said that he expects all the players on the PUP list except John Chick to be back on the field soon, the fact that Session has spent seven months trying to recover from his concussion issues doesn't bode well for his immediate future or the rest of his football career.

For more on the Jacksonville Jaguars visit SB Nation's Jaguars blog Big Cat Country. Check out SB Nation's NFL hub for more on all 32 teams.