His brother-in-law Tony Bergstrom is an offensive lineman for Oakland, listed as a second-string left tackle behind Jared Veldheer.
Bergstrom is married to Kruger's sister, Jessica. The family will be at the game.
Kruger likely wont have much of a chance to clash with his extended family member, but in case they cross paths Ravens coach John Harbaugh will be watching.
"They won’t be brother-in-lawing each other out there during the game, will they? They better not," Harbaugh said to laughter. "They will be getting after it pretty good. The two brothers will be fighting. To be honest with you, I kind of forgot about that. Didn’t put that together. I’ll have to talk to Paul about that here, see how he is doing.”
Kruger began the season as a starter at outside linebacker, but by Week 2 he was out with a back injury. He had been playing a supporting role since then but regained his starting spot after the bye week while Albert McClellan has shifted to his backup.
Kruger played 54 defensive snaps for Baltimore, or 77%, in a 25-15 win at the Cleveland Browns last week.
"I'm sure she'll be fine with whatever happens," Kruger said.
"There's a little bragging rights. It's something we can talk about 20 years from now."