Howard (knee) won't play against the Rangers on Sunday, per Stephen Whyno of the Associated Press.
Howard exited Saturday's 4-0 win over the Islanders after taking a knee-on-knee hit from Emil Heineman. Head coach Mike Babcock is optimistic that Howard's injury isn't serious, but it's unclear when the 22-year-old forward will be ready to return. Howard has one goal and two assists in 13 appearances this season.