Jermichael Finley is sitting out in training camp for the Green Bay Packers.

Now, we know why.

Finley’s wife Courtney Finley spilled the news on Twitter and Aaron Nagler was sharp enough to capture it before it was subsequently deleted. Finley has a concussion, according to his wife.

“Got a slight very mild concussion at practice yesterday & protocol is to sit a few days,” she wrote and then deleted on Twitter.

So, there is your first significant concussion news from an NFC camp this summer. Hooefully, Finley is back and working soon.

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Brad Biggs covers the Bears for the Chicago Tribune