Shawne Merriman doesn't quite get Aaron Rodgers' upcoming isolation retreat -- he says it "sounds like jail to me" -- but the ex-Chargers star tells TMZ Sports he isn't going to judge the QB for trying to better himself.
Both Merriman and former NFL star LaVar Arrington weighed in on the Green Bay Packers signal-caller's plans to lock himself in darkness for four days later this month ... and neither guy said it was something they'd get themselves into.
But, both former football players -- who were catching a meal together out at Super Bowl week in Arizona -- had no desires to shade the 39-year-old for it.