Reilly said that he sees himself as an "everyday player" and will do whatever it takes to stay in the lineup, including shifting to his off side, something he has done at various points throughout his career.
"I played it quite a bit in college and kind of sporadically throughout my pro career a little bit," said Reilly. "Obviously, there's some adjustments made in the neutral zone and D-to-D passes. But I think there's definitely some advantages to it, especially in the offensive zone as well."
"I definitely think I can [embrace it]. If they need me to play the right side, I definitely am willing to do it. I've done it before a little bit. I just think with more repetitions and practice, it will just get better and better."
Reilly will be taking the spot that was occupied by newcomer Josh Brown on Thursday night. Brown, who did participate in Saturday's morning skate, left the game against the Devils with an upper-body injury in the second period. The 6-foot-5 blue liner fought Devils defenseman Mason Geertsen just 2:56 into the contest.
"He's feeling better, skated today, so I suspect he'll be available Monday or Tuesday," said Cassidy. "When you have new people on board, you want to get them involved, otherwise you risk them feeling like an outsider. Brownie's in that category. I want to play him.
"Whether he outplays a Reilly, Forbort, Clifton remains to be seen. It's good to have competition. It's like McLaughlin when he came in. We wanted to get him in a at some point."
Jeremy Swayman will start between the pipes for the Bruins.