Parenteau will return to the lineup Thursday against the Senators, John Lu of TSN Montreal reports. Parenteau was activated from injured reserve in late February following a long absence due to a concussion, but he's only appeared in one of the Habs' six games since that time. Though he'll slot in on the team's second line Thursday, Parenteau will likely need to prove himself production right away in order to maintain his spot in the lineup. Brian Flynn will be scratched Thursday to make room for Parenteau.