It's been quite the experience for the 21-year-old, witnessing first-hand the preparation that goes into the day-to-day grind of the NHL.
"They play once every two days, so you have to bring you're A-game," he said. "The past year and a half was about learning how to be a pro, with the 'A' team (Calgary Wranglers) it's been great. The past 12 or 13 days has been the same thing in learning to maybe get a chance to play."
If he does indeed draw in, there will no doubt be a lot of excitement and emotions but at the end of the day, the coaching staff just want him to keep it simple.
"I think the biggest thing, you gotta play well with the puck," Muller said. "Probably the biggest thing is being used to playing big minutes, sometimes when you get into a different role you really have to stay focused in the games and be prepared if you are sitting a few shifts to jump out and catch up to the pace.
"He's a smart player, he understands the game. I know he's offensive but he knows how to play without the puck, he's responsible that way and that's the key thing. Sometimes when you get to the NHL the game is easier because guys know what they are doing."