Maybe it's the competitive fire that MacKinnon helped light in the first place, or the fact that bragging rights are always on the line when you face off against an old friend. Whatever the reason, when you have a chance to shut that down and give your team a bit of a spark, it's meaningful.
Just don't ask him to keep up in another key area:
The trash talk.
"I don't know much I could say to him because he'd come back with 40 different chirps that are probably better," Weegar laughed. "The best chirp for me is shutting him down and giving him a tough night."
Certainly, that has to be focus for the Flames tonight, who are looking to bounce back from a 2-1 loss in Nashville the other night and get this important four-game homestand started on the right foot.
It's a tough turnaround for the players after a four-hour flight home from Tennessee and landing at 2:15 a.m. MT (or 3:15 a.m., according to their bodies after spending 10 days in the Central time zone).
Instead of taking a day off, the players came in for a light workout on Tuesday to help stay in a rhythm and not let their cardio capacity suffer too much from the schedule. (The players, by the way, will be getting Thursday off instead, with two days until their next game.)
"For me, it's the elevation and the lungs," Weegar said. "The big thing is to get enough sleep.
"Rest, stretch.
"A lot of teams maybe wouldn't come in after a long road trip, but sometimes it is good for us to get a bike ride in and flush it out and get the lungs ready and legs going for tonight."
With the defending Cup champs in town - who are without the reigning Norris winner, Cale Makar - they'll need to have their wind. Fortunately, games like this are easy to get up for, no matter what the calendar throws at you.
"It was an OK trip," Weegar said, reflecting on the Flames' 2-1-2 mark away from the 'Dome. "I think that's been our year. We've got to find a way that when we have (opportunities) to climb the standings.
"It was a tough road trip. Tough teams in there. I think we could have done a little bit better, but now we're playing the defending champs tonight and we're focused on that.
"We're still trying to climb the standings here and battle hard."