Darren Helm has been assigned to Grand Rapids. That means that either Henrik Zetterberg (groin) or Darren McCarty (groin) will play tomorrow night in St. Louis.

Zetterberg said that he'll test himself at the morning skate Wednesday and decide after that. McCarty is still on injured reserve, but is eligible to come off that list when he's healthy. McCarty will come off IR and play if Zetterberg can't go tomorrow, according to general manager Ken Holland.

This also means that McCarty will stick with Detroit until another player needs to be added to the active roster -- such as Chris Chelios (leg) coming off injured reserve. By that time, perhaps McCarty will be sent to GR or perhaps he'll stay to fill in for another injured forward. For now, McCarty is the 13th forward.