GREEN BAY, Wis. -- It's not Eddie Lacy versus Marshawn Lynch in Sunday's NFC Championship Game, and the Green Bay Packers running back is thankful for that.

"He's a great back -- powerful, strong," Lacy said Wednesday of his counterpart with the Seattle Seahawks. "But that's not my concern. I don't have to tackle him."

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Lacy has plenty to worry about with the Seahawks' defense, which held him to just 34 yards on 12 carries in their 36-16 rout of the Packers in the season opener at CenturyLink Field. Lacy's night ended early in the fourth quarter after a collision with safety Kam Chancellor.

Actually, two collisions.

Chancellor drilled him at the end of a screen pass and then again at the end of a run on the next play.

The Packers said Lacy left the game because of a concussion. He said it wasn't that severe.

"I remember it wasn't a concussion; it was, 'Got my bell rung,'" Lacy said. "The difference is when I get a concussion, I didn't remember what happened at all. In this one, I knew exactly what happened."

And what he discovered was that Chancellor hits hard.

"Definitely one of the hardest hitters I've ever ran into," Lacy said.

The Seahawks didn't have nearly the problems with Lacy that the Packers did with Lynch, who ProFootballFocus.com credited with breaking nine tackles in the game. Lynch rushed for 110 yards on 20 carries and scored two touchdowns.

The back story on Lynch and the Packers is that they almost traded for him in 2010, when the Buffalo Bills were shopping him. But they did the deal with the Seahawks, who gave up a fourth-round pick and a conditional pick that ended up being a fifth-rounder. The Packers offered a fourth-round pick because they were in need of a running back after Ryan Grant was lost for the season to a broken ankle.

"I thought it was a possibility, for sure," said Packers quarterback Aaron Rodgers, who played with Lynch at the University of California for one season (2004). "He was on the market for what didn't seem like a whole lot getting out of Buffalo. I think they ended up taking that offer based on where the pick would lie in the draft because of the records. So it'd be interesting to see any of the what-ifs if he had come here."

Had they landed Lynch, perhaps they would not have drafted Lacy in 2013.

In Lacy, the Packers found the bruising back they sought in Lynch. Over the past two seasons, Lynch leads the NFL in yards after contact (1,281), while Lacy ranks second (1,111), according to ESPN Stats & Information.

"Those guys are similar in the sense that you have to have multiple defenders trying to get those guys down," Packers linebacker Julius Peppers said.

Said Packers coach Mike McCarthy: "I don't know if there's a whole lot of people that want to tackle Eddie. He's playing at an extremely high level. I think he's playing the best football of his two-year career. ... He's breaking tackles, but we're going against an excellent tackling defense, so this will be a big challenge."