Aaron Rodgers suffered his second concussion of the season on Sunday against the Lions. Green Bay's playoff hopes are hanging in the balance, but the team will still err on the side of caution with Rodgers. Rodgers was expected to begin the evaluation protocol for head injuries Monday. The Packers will face the Patriots on Sunday night. "We're not going to take any chances," coach Mike McCarthy said. "No different than on game day. When it became a question, an issue -- was he clear, wasn't he clear? -- we pulled him immediately. We'll always take the high side of caution in these types of situations."