The defending Stanley Cup champions made the move Monday before travelling to Dallas to face the Stars on Tuesday night.
Penner missed the Kings' past four games with a lower-body injury after getting hurt March 31 in Dallas. The eight-year NHL veteran has two goals and nine assists in 25 games this season.
The Kings began Monday in a third-place tie with Vancouver in the overall Western Conference standings. Los Angeles trails Pacific Division-leading Anaheim by nine points after Sunday's 4-3 shootout loss to the Ducks.
For us it's a little bit different. I've never been in front of this much media. This is more than we've ever had to deal with in Tampa. I guess we're on a little bit bigger stage now. It's nice, you have to enjoy it. This doesn't happen too often.
— Lightning forward J.T. Brown after his first Media Day experience on Tuesday in preparation of Game 1 on Wednesday