Duchene said he didn't fall asleep that night until 3 a.m., then was up at 7:45 a.m. on Monday ahead of the flight to Sweden for the 2017 SAP NHL Global Series, which will have Duchene face off against his former team on Friday (2 p.m. ET; NHLN-US, ALT, TSN5, RDS, NHL.TV) and Saturday (1 p.m. ET; NHLN-US, SN, RDS, ALT, NHL.TV).
"Obviously it's going to be weird playing against my old team back-to-back, but I think getting it done right away I think it's a good thing. You don't really have time to overthink it. It's going to be weird playing against the guys, I have a lot of friends over there. It's going to be fun, though."
Before that, though, there's work to be done.
The Senators need to figure out how they're going to integrate Duchene into their lines and their lineup, with coach Guy Boucher placing him between Zack Smith and Mike Hoffman during practice Tuesday.
"Obviously you want to surround a player like (Duchene) with the best players possible and (Hoffman) is a first-line guy, that's what he's become, and since [Derick] Brassard and [Mark] Stone are clicking so well, we don't want to touch that," Boucher said. "So we're hoping to be able to create another pair with (Duchene).
"Is it (Hoffman)? Is it Bobby Ryan? Is it [Ryan] Dzingel? We'll see as we move along, but the only way to do that is trying."
The idea, Boucher said, is to maximize Duchene's strengths, to make him fit.
"He's a fast guy, he needs fast guys with him," Boucher said. "His hands are unbelievable. His qualities down low at being able to twist the opponent and force himself in and attack those seams going inside, which is our identity and we want it to grow.
"I think that (Hoffman) being able to hide and loading up for that weapon that he's got, I think that could work, but if it doesn't -- I've seen it before -- it doesn't mean two good players click together. That's just a chemistry thing."
That means the lines remain a work in progress. But Boucher wants to give this a chance, to see if this might all work out, to strengthen the Senators as they push to improve upon last season, when they made it all the way to Game 7 of the Eastern Conference Final - which is exactly what Duchene wants.