The Devils confirmed the signing of Zidlicky on Wednesday without releasing details of his new contract.
The signing will allow the Devils to keep their top defensive pair together. Zidlicky usually plays with captain Bryce Salvador.
Acquired from Minnesota in February 2012, Zidlicky helped the Devils reach the Stanley Cup finals that season. The native of the Czech Republic had four goals and 15 assists last season when New Jersey failed to make the post-season.
I downplayed the first one because I thought it's just a hockey game. We just want to win the game; it's against our rival and we want the two points. I downplayed it, but now having gone through the first one I look back and say, 'Geez, that was really cool.' I think as I've grown a bit older I've got a lot more appreciation for what we're allowed to do every day.
— Capitals forward Brooks Laich on the 2015 NHL Bridgestone Winter Classic, the second one of his career after 2011 in Pittsburgh