The Jacksonville Jaguars have suffered a loss along their defensive line.

Aaron Lynch, 27, told the team he's retiring for personal reasons.

Lynch is the sixth defensive lineman to either opt out, go on injured reserve or retire since July 31. His retirement comes one day after Rodney Gunter said he was stepping away from the game because of a heart problem.

"The one thing I think I've learned over the history of this league is even though you're doing all these moves or you're doing all these things to fix things and you feel comfortable, at any moment in time those things can change," Doug Marrone said. "And you've got to be prepared and you've got to be able to do it. I know that there will be a lot written about, kind of like you said, these plans that they have, have been blown up. But it's also a great opportunity and a great challenge for these other guys to step up, and if you have that happen, that's great. Especially the young guys.

"The guys that we're talking about [that are not available] were guys that were experienced, guys that have done it before. Having those veteran type of guys brought in, we still have a decent mix, but now it's a little bit more on the younger guys and guys that have been here to step up."