After the Celtics second-to-last practice before their season opener against the 76ers on Wednesday night, forward Jaylen Brown met with the media at the Auerbach Center in Brighton, MA to give an update on his injured left hamstring.

It was tightness in that hamstring that forced Brown to exit Wednesday night’s preseason finale against the Raptors, which then led to head coach Joe Mazzulla announcing Brown as day-to-day when talking with the media on Friday.

But after practice on Monday, Brown made it clear that he’s not all that concerned about his current health status.

“I wasn’t too concerned,” Brown said when asked how he felt in the moment as the tightness came about. “I think it was nothing. I was fine. Maybe a little tweak, but nothing crazy.”

When asked about his availability for the season opener, Brown said, “We’ll see. We’ll take it one day at a time. But as of now, I feel great.”

Brown was far more open to talking about his excitement for this upcoming season within Mazzulla’s revamped fast-paced offense than he was his health.

“I think Joe’s done a great job of setting the tone, the pace, the energy, the style that we need to survive and the style that we need to play every single night,” said Brown. “Obviously we’re less talented than we have been before, less experienced than we have been before, so this is the style of basketball we have to play.

“We have to double down on it if we want to be successful. I think Joe has done a good job of that and he’s maybe been a little crazy, but a little crazy is needed at times. I’m OK with that. You’ve got to be a little crazy if you want to win or you want to outperform people’s expectations, so I think Joe has done a great job.”

While Brown was unwilling to outright say he was available for opening night, he sure sounded like a guy that plans to suit up for his team for their first game in 2025-26.

“It’s one of the funner times of the NBA season,” said Brown. “It’s like the first game, it’s just like the first day of school. Got your outfit lined up, the shoes lined up, you’re ready to go. So I’m looking forward to it.”

With ambiguity surrounding the status of both Brown and Philadelphia star center Joel Embiid for opening night, Boston’s odds as a 2.5-point favorite at Caesars could change at any moment. As of publishing, you can get the Celtics on the moneyline at -139, and the total is set at 226.5 at BetMGM.

In case you weren’t watching the preseason finale on Wednesday and would like to make a determination on your own on the status of Brown’s hamstring, here’s some research for you to study as an armchair doctor:

At 5:15 in the first quarter, Ochai Agbaji missed a corner three, leading to a rebound by Celtics center Luka Garza. In an attempt to push the pace, Garza got the ball to Brown, who was looking to facilitate some fastbreak points by dribbling up the middle of the floor.

After just two dribbles, Brown tossed the ball to a cutting Anfernee Simons on the left wing. And as his new teammate dribbled toward the basket in search of a streaking Garza towards the rim, Brown faded off towards the sideline while grabbing his hammy.

Simons’ pass eventually led to a turnover, which had Toronto attempting a fastbreak of their own. And as Toronto’s RJ Barrett finished a layup, Brown could be loafing back in transition, hanging by the arc while still grabbing that leg.

On the ensuing Boston possession, Brown hobbled toward the left corner while the offense began setting up some action on the right wing. Before they could get anything going, Garza was called for a questionable offensive after unsuccessfully trying to screen the Raptors’ Immanuel Quickly.

With the stoppage in action, subs came in, sending Brown to the bench. His night was over, and Celtics fans all collectively began to hold their breath.

If there’s one thing this Boston team cannot afford this season, it’s losing Jaylen Brown for any sort of extended stretch.

With Jayson Tatum likely out for the entire season as he continues to rehab his Achilles, this has to be Brown’s season to shine. The second-banana spot must be passed along to someone else, as the top spot unequivocally goes to the 10-year pro out of Cal.

Tatum is out. Al Horford plays for the Warriors. Jrue Holiday played for the Trailblazers. Kristaps Porzingis plays for the Hawks. Luke Kornet plays for the Spurs.

The early part of this season is going to be a lot of this team figuring out who they are moving forward. Brown was-and-is obviously going to be a huge part of that. Missing time at the beginning of the season as the new foundation is being laid down would be a devastating blow towards Boston’s chances of remaining a top team in the Eastern Conference sans Tatum.

For the sake of having a competitive basketball season, let’s hope Mazzulla’s postgame read on the situation was an accurate one.

…but if Patriots All-Pro cornerback Christian Gonzalez taught us anything about hamstrings this year, they can make for a tricky, unpredictable rehab process.

Tom Carroll is a contributor for Roundtable, with boots-on-the-ground coverage of all things Boston sports. He's a senior digital content producer for WEEI.com, and a native of Lincoln, RI.