Kamil Krzaczynski / AP Photo

The Boston Celtics embarrassed the Chicago Bulls on Saturday, handing Chicago a 133-77 beatdown, the worst loss in Chicago's franchise history.

Here are 10 things we learned.

Don't Edit

1. The Celtics look like fun again.

Kyrie Irving said the Celtics were having fun again after they handled the New York Knicks with ease on Thursday, and that sentiment is more and more evidently true.

First and foremost, the swagger is back. Jayson Tatum hit a step-back three that barely moved the net early on. Irving was dancing, as usual. Terry Rozier has some bounce back in his step. Shots that look like they should fall are actually falling, which is an upgrade over the first 20 games.

Don't Edit

But smaller signs exist as well. Theis was mobbed walking off the floor after scoring his career high. Irving, Tatum and Smart could be seen laughing uproariously before the start of the fourth quarter on the bench. Winning feels good, and the Celtics have now won five in a row. That's a lot of good vibes for a team with a ton of good players.

Don't Edit

2. Jayson Tatum found his range.

Like many of his teammates, Tatum struggled from the floor in the early going, but over the last month or two, he has quietly worked his way back toward respectability. On Saturday, he had a ton of open looks, and he made the most of them -- finishing 4-for-4 from behind the arc before being pulled prior to the fourth.

Don't Edit

Tatum took a couple of contested long twos to start the game (which he made), but for the most part, his shot selection was perfectly acceptable. He's back to looking like himself (a common theme around this roster).

Don't Edit

Don't Edit

3. Guerschon Yabusele's ankle injury was tough to see.

Yabusele was the first big off the bench, and he gave the Celtics some nice contributions -- moving the ball, defending and getting up and down the floor in 16 minutes.

That made his sprained ankle in garbage time even harder to look at. Here's hoping he can get back on the floor soon.

Don't Edit

Guerschon Yabusele was just helped off the court after this fall in Chicago (@AAANe_MAnews) #AAANortheast pic.twitter.com/ykK4ljEMhU — Celtics on NBC Sports Boston (@NBCSCeltics) December 9, 2018

Don't Edit

4. Daniel Theis was a nice addition to the starting lineup.

With Aron Baynes, Al Horford and Robert Williams all out, Theis got the call as a starter, and he played incredibly well -- scoring a career-high in points and filling in nicely. Theis is athletic enough to be an ideal roll man, and he can space the floor credibly enough to be a threat. Boston's depth is such a force.

Don't Edit

It's not even fair 🤦‍♀️ Kyrie to Theis for three (@AAANe_MAnews) #AAANortheast pic.twitter.com/83QvwNgSVE — Celtics on NBC Sports Boston (@NBCSCeltics) December 9, 2018

Don't Edit

5. Here's the best Marcus Smart stat.

The modern game is just different. Smart eventually passed this milestone in the second half.

Don't Edit

Don't Edit

REAL STAT: Marcus Smart has just tied Danny Ainge for 9th on Celtics all-time 3-pt list with 348 pic.twitter.com/F3tT1BMts6 — Max Lederman (@Max_Lederman) December 9, 2018

Don't Edit

6. Terry Rozier getting better is a boost for the bench.

Perhaps no one was struggling more at the start of the season than Terry Rozier, but he looks considerably over the last few games. Part of that has simply been a matter of making shots he usually makes, which is also the case for Tatum and Gordon Hayward.

Don't Edit

But Rozier also gets a boost from getting opportunities off the ball, with Hayward running the point in several second units. More on that in a minute, but for now, Rozier deserves some credit for the way he has turned his season around.

Don't Edit

7. This bench unit as a whole is killer.

At some point, the Celtics will probably need to revisit how they start games, but that point is not right now. Rozier, Hayward and Jaylen Brown are an absolutely murderous trio to bring off the bench, crushing the life out of opposing second-units with starter/All-Star talent. Meanwhile, Irving, Smart, Morris, Tatum and Horford (or whichever big man is healthy) are more than capable of beating teams in the first few minutes.

Don't Edit

Until the starting lineup looks like it doesn't have enough talent (which might not happen), Brad Stevens might be best served rolling with what's working. Minutes can be spread around pretty equally as things stand right now, and the Celtics' rotations might be equally dangerous with starters and second-unit players mixed in. That's an enviable position.

Don't Edit

Don't Edit

8. Chicago is really bad (so take this one for what it's worth)

The Celtics have great matchups for every one of Chicago's best offensive players. On the other end, the Bulls couldn't stop anyone, and the Celtics have a lot of players who good defenders struggle to slow (nobody would accuse the Bulls of having an excess of good defenders).

Don't Edit

The result: The worst loss in Chicago's franchise history, and Bulls fans booing the team off the court.

The Celtics are supposed to beat teams like the Bulls, and they did so comfortably on Saturday. The winning streak is the longest of the season so far. As far as true takeaways, those are probably the only real ones from Saturday's game.

Don't Edit

9. There were some wild box score numbers.

Some fun with stats: Daniel Theis was +50 (!). Some other absurd plus/minus stats: Marcus Smart was +32, Marcus Morris was +34, Kyrie Irving was +27 and Jayson Tatum was +25.

That's pretty good!

Don't Edit

On the other end, poor Shaquille Harrison scored 20 points and was still -43, Cameron Payne was -34, and no member of Chicago's bench finished better than -20.

That's really bad!

Don't Edit

10. Jaylen Brown is definitely back.

Jaylen Brown's resurgence continued on Saturday, pouring in 23 points on 8-for-11 shooting off the bench.

Perhaps most importantly: He made all three of his triples. The Celtics need Brown to continue his aggressive takes to the basket, but seeing his 3-point percentage rise back toward the 39.5 percent he hit last year would be as big a boost as anything.

Don't Edit

Don't Edit