PITTSBURGH — After apologizing on Tuesday for livestreaming locker room video of the Steelers postgame celebration to Facebook following their win over the Kansas City Chiefs on Sunday, wide receiver Antonio Brown reiterated his remorse on Wednesday.

“I absolutely regret the Facebook Live situation,’’ Brown said. “It’s a total distraction to the organization, a total distraction to my teammates, obviously disrespect to my coach. I’ve got the utmost respect to my coach, so I totally regret that.’’

While Steelers coach Mike Tomlin and quarterback Ben Roethlishberger were giving speeches to the team, Brown was streaming live inside the locker room.

The video revealed explicit language by Brown and others, including Tomlin, who used an obscenity to describe the Patriots. The video was viewed 1.1 million times.

Tomlin and Roethlisberger both expressed disappointment in Brown for violating not only league and team policy but breaking the sanctity of the locker room.

Tomlin said Brown would be disciplined by the team and the league, but the punishment wouldn’t keep the star receiver out of the AFC Championship game on Sunday.

Brown didn’t elaborate on the punishment, but he explained the thought-process behind posting the video. A concussion kept Brown out of the Steelers divisional-round loss to the Broncos a year ago, and he said he was swept up in the moment of getting to the divisional round again, this time advancing.

“You guys don’t know what it’s like being ruled out of that game, then having to wait 365 days to get that opportunity again,’’ Brown said. “So I was extremely excited about the opportunity to get a chance to play in the divisional game this week and after the emotional win I got a little too excited, but I think my teammates know the type of person I am, what I stand for. Everyone here knows.’’

Still, Brown has been fined three times already this season — twice for end zone celebrations and once for violating uniform policy with custom cleats — and Tomlin cautioned that despite his talents, his judgment could prove costly down the line.

Brown, who will be in a contract year next season and is hoping for an extension, took heed of Tomlin’s words.

“Those words that he spoke, I didn’t take lightly,’’ he said. “That’s a big statement coming from our head coach and I didn’t take those things for granted. I’ve got to relish in those words and I’m looking forward to just doing my job.’’

Social media has become one of the primary ways for athletes to engage with fans, but the terrain can be treacherous. Brown said he was unaware of the league’s social media policy until this week.

“You’ve got to understand the rules and ramifications,’’ Brown said. “And I found that out the last couple days.’’

Following the incident, the Wall Street Journal pointed out a report from last July that Brown is being paid $244,000 to act as a “social media influencer’’ for the platform.

Brown declined to comment, saying, “That’s top secret.’’

Asked if he intended to post live to Facebook again this week, he didn’t rule it out.

Instead, he grinned and said, “You’ve got to wait and see.’’

Communications issues The last time the Steelers came to Foxborough — the season opener in 2015 — Tomlin left Gillette Stadium fuming over a headset malfunction in a 28-21 loss.

At some point in the first quarter, instead of hearing each other through the headsets, the Steelers heard the Patriots’ radio broadcast. The NFL ultimately determined that the issue was “entirely attributable to an electrical issue made worse by the inclement weather.’’

But with a trip to to the Super Bowl on the line this time, Tomlin said he doesn’t expect the issue to creep up again. “I’m going to proceed with the assumption that’s the case,’’ Tomlin said.

Special attention

For the second straight week, the Steelers special teams unity will have to be on high alert.

Last week, the priority for the Steelers’ special teams unit was shutting down the Chiefs dynamic rookie Tyreek Hill. This week, they’ll have to keep Patriots return man Dion Lewis in check after Lewis returned three kicks for 124 yards, including a 98-yard touchdown return against the Texans.

The Steelers held Hill to 72 yards on four returns, but their first kickoff of the game was dicey.

Kicker Chris Boswell squibbed the ball away from Hill, but tight end Demetrius Harris grabbed it and ran 25 yards to the Kansas City 45, and the Chiefs use the short field to score a touchdown that gave them an early 7-3 lead. The Steelers went the entire regular season without allowing a first-drive touchdown.

“We just had a miscommunication out there,’’ said safety Robert Golden. “We didn’t execute the plan like how we did at practice. Like I said, we moved on from that, and we were able to shut down Tyreek Hill.’’

Lewis will be another challenge.

“Once you enter the playoffs every guy that you play against that’s returning back there is pretty good,’’ Golden said. “We’re up for the challenge, we’re going to be ready and we’re going to get out and try to get the job done.’’

Injury updates Roethlisberger and running back Le’Veon Bell missed practice for non-injury reasons. Kicker Chris Boswell, receiver Darrius Heyward-Bey, quarterback Zach Mettenberger, and center B.J. Finney all sat out due to illness. A shoulder injury kept safety Sean Davis on the sidelines. Linebacker Anthony Chickillo (ankle), tight end Ladarius Green (concussion), and safety Mike Mitchell (non-injury) were all limited in practice. Linebacker James Harrison (shoulder, triceps), running back Fitzgerald Toussaint (concussion), and defensive end Ricardo Mathews (ankle) all practiced in full.