Hagelin hit gave Alfredsson concussion
However, the Senators captain participated in Monday's morning skate and said he's a game-time decision for Game 3 at night.
Alfredsson missed more than half of Ottawa's series-tying victory Saturday following the hit from Hagelin. On Sunday, Hagelin was suspended three games by NHL disciplinarian Brendan Shanahan.
Alfredsson said he accepted an apology from Hagelin after the incident. Hagelin also is Swedish and has said Alfredsson was one of his favorite players while growing up.