Coaches worry about everything because it’s in their DNA — and sometimes part of their charm — and while Dwane Casey was quite fine with the Raptors unfurling a banner to commemorate their Atlantic Division title on Monday night, he was a bit concerned, too.

After all, he reasoned, it might give his team cause to ease into its game against the Milwaukee Bucks, a bit full of itself and too proud of the accomplishment.

“I think it’s great for the fans to be able enjoy it, to see it, (but) our players have to be mature enough and understand we’ve got a game to play,” he fretted.

Or, he thought, it might give the Bucks some kind of added incentive to play as well as, or better than, they did in extending Toronto to a four-point game just over a week ago.

“If you have anything in your trunks, you’re probably going to get upset and come out swinging if you see the other team hanging a banner on you,” he said. “Ring ceremonies, banner ceremonies are usually fuel for the other team.”

Worrywart.

Even with DeMar DeRozan reduced to a mere spectator enjoying a night of rest, the Raptors claimed their franchise-record-setting 48th win of the year, dumping the Milwaukee Bucks 110-100 at the Air Canada Centre in the penultimate game of the regular season.

“Guys came out with a total focus. We lost it there a little bit in the second half, but the start of the game, our guys were locked in, attention to detail was there on both ends of the floor,” said Casey.

DeRozan’s greatest impact on the game was his short speech thanking the fans for the just-completed home season as the banner recognizing the team’s division title was unfurled in an understated, quick ceremony.

“It definitely felt good to share it with (the fans) because they played a major part in it as well,” he said. “I’ve been here through the struggles and the tough times and our fans were still right there with us on this journey.”

And there is no certainty that DeRozan will play Wednesday when the Raptors wrap up the season in New York.

“We’ll see what we decide on that,” said Casey. “Amir’s had time off, Kyle’s had time off, he’s the only guy with big minutes that hadn’t had time off. I could just see a pep in Kyle’s step since he’s had his rest, so we’ll see how it goes.”