The Denver Nuggets bounced back in a huge way after their loss to the Golden State Warriors on Sunday with a 103-84 rout of the Boston Celtics on Wednesday, and it featured a few special moments that reveals a lot about the mentality of the Nuggets' roster.

The most special moment belonged to KJ Simpson, who made his Nuggets debut on Wednesday after being waived by the Charlotte Hornets. 

Simpson, who played for the University of Colorado in college, had just two points in the game, but they were a highlight worthy two points.

In the final seconds of the third quarter, Simpson picked up a loose pass from the Celtics and raced down court with the ball before going up for a slam dunk, much to the Denver faithful's delight. 

It was a sentimental moment for Simpson considering his college history in Colorado, but it was almost a moment that didn't happen.

Denver head coach David Adelman said that Simpson didn't know that he was playing until the game was already underway. Jamal Murray ended leaving the game early, so Adelman had some space on the floor that he decided to fill with Simpson, at least for the first half. 

Simpson ended up being +13 in the 14 minutes he was on the court and contributed four rebounds and four assists. Adelman praised the professional attitude of Simpson in the situation.

When looking at Simpson's status as a two-way player, who's career is inherently filled with chaos, his willingness to step up in unexpected circumstances says a lot not only about him as a player, but about the mentality that the Nuggets have across the team.

"That’s what you look for when you sign these guys, these two-ways, your front office is looking for people that are quality people that are ready to play," Adelman said (via Nuggets). "If they don’t get their opportunity in the next game, just be ready to play for the next one after that... We’ve had 'buy-in' from everybody this season."

The Nuggets have had more trials than most teams this season, and yet they've continued to thrive.

As the expected stars and starters have all suffered injuries that have kept them away for significant stretches of time, the "next man up" mindset that many Nuggets players have had has kept them afloat. 

No matter who went down next, someone else deeper on the depth chart as ready to step up. Simpson is one small example of this, but players like Peyton Watson, Zeke Nnaji, Jalen Pickett and Julian Strawther have all risen to the occasion time and time again.

It's the kind of mentality that promotes winning basketball and helps a team outlast difficult circumstances, and the kind of mentality that will keep powering the Nuggets forward in the future.