And it was not just his play on the ice that his teammates appreciated. Backes, who captained St. Louis for five seasons and has been an alternate during his three years in Boston, also brings a valued voice on the bench and in the dressing room.
"He's a leader. He does that," added Cassidy. "He's been through these playoff battles, so he did his job and then some tonight, and we needed it."
"I thought he hunted pucks great. He was physical and we expect that from him," said Chris Wagner. "Like you guys don't see on the bench, he is a loud voice and I thought a lot of guys have echoed that, but it's true and we respect him a lot for that."
The respect is certainly mutual.
Backes complimented his teammates for their response on Saturday night, pointing specifically to the sacrifice and commitment that everyone on the roster made in what was an emotional, hearty contest.
"We had guys dialed in tonight," said Backes, who also saw time with David Krejci on the B's second line. "I think Game 1 was a slap in the face, a little wake-up call, and guys responded excellent tonight. Even with some of the shenanigans going on, we were focused on what we needed on our next opportunity. We got out there and we did it.
"Tuukka [Rask] was solid in net, and we had different guys, JD and Pasta, and guys that maybe are known for flying up the wing and scoring a goal that are laying the body, taking hits when they need to and playing through some gnarly stuff.
"That's team building and that's what we're looking for. I think it was a great response by us, but it's one game. We've got to go in their building and we've got work to do after they took Game 1 from us here."