"I feel fine," Grant told WSSP-AM on Monday. "I have been walking around. I finished the game and everything. We really don't know any details right now. ... It wasn't really anything major to it -- just precautionary I guess. We'll get some more information from the doctors on some tests later on this week."
The injury, which occurred on a fourth-quarter play, brought Grant into contact with Chicago's All-Pro linebacker Brian Urlacher -- not an ideal scenario for anyone in a Packers uniform.
"I think Brian Urlacher caught me in the back and it was funny when it happened -- I was like 'Oh' on the field, and Brian Urlacher said ... 'me too, R.G.' I felt that one, too. It hurt.'"
Despite the unbeaten start, Grant says the defending champs aren't playing their best: "A win is a win. Especially in this league, but at the same time we are not playing the sort of football we want to play," adding that it's another NFC North team -- the Lions -- that has everyone talking.
"They showed they have weapons on that team. They showed good defense and they've showed they finish games at the end," Grant said. "That is big in this league. I think you don't take anything away about what Detroit brings."
The two teams don't meet until Week 12, in what looks like the first intriguing Thanksgiving tilt for the Lions since Chelsea Clinton roamed the upper floors of the White House. If that's not enough, the two close the season in Green Bay on January 1, in a game some are starting to believe will decide this hard-hitting division.