Arizona Cardinals quarterback Carson Palmer is dealing with an axillary nerve contusion in his right shoulder.
Palmer doesn't need surgery, though.
The injury isn't regarded as season-ending or career-threatening, though, according to reports.
He's still hurt, though.
"We've turned over every stone," Palmer said. "We've exhausted everything. One of the things I've learned is that nerves are very finicky and they're very unpredictable. It's not a sprained ACL where it's a two-to-four week thing. This is just something you got to continue to work and when it's ready, it's ready.
"So, we're just going to continue the same rehab process and continue working at it and trying at it and this thing will come back and I'll be ready to go."
It's a rare injury.
"I could get hit thousands of times," Palmer said. "It just happened that my arm was in the wrong position. I landed directly on the nerve and put enough pressure on the nerve to just shut it down.
"It's been a frustrating process. It's one of those things where there's not a simple answer. It's not a two-week thing, a three-week thing, you have to do this and it's fine or you do that and it's fine."
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Aaron Wilson covers the Ravens for The Baltimore Sun