All-season long, one of the first things opposing coaches would say after facing the Lakers was, “it was so hard to adjust to their length and physicality.”

The Miami Heat learned that lesson the hard way Wednesday.

The Heat raced out to a 13-point lead early in Game 1 of the NBA Finals as they forced the Lakers to become jump shooters. Then those shots started falling, Miami started missing, the Lakers started running, and everything came apart for the Heat. The Lakers closed the first quarter on a 19-3 run.

That run became 75-30.

“It’s been that way all year long, whenever we start to miss a couple shots, we don’t do what we’re supposed to do on the other end,” Jimmy Butler said.

That was the ballgame.

The Lakers were physically dominant, shot 15-of-38 from three (39.5%), and blew the Heat out of the building in Game 1 of the NBA Finals, 116-98. LeBron James finished with 25 points, 13 rebounds, and nine assists. Anthony Davis added 34 points and added three blocked shots — Miami had no answer for him inside.

The Lakers led by as many as 32 before some good garbage time play from Miami — 18 points from Kendrick Nunn — made the final score look more respectable than the game itself was.

Game 2 of the Lakers vs. Heat Finals is Friday night.

“You know, from that moment when it was 23-10, we started to play to our capabilities,” LeBron said. “We started flying around. We started getting defensive stops. We started sharing the ball a lot better offensively and just got into a really good groove.”

“The Lakers set the tenor, the tone, the force, the physicality for the majority of the game,” Heat coach Erik Spoelstra said afterward.

More disturbing for the Heat are the potential injuries to critical players.

Goran Dragic did not come out of the locker room for the second half and had X-rays on his foot. While there is nothing official, Adrian Wojnarowski of ESPN reports he tore his plantar fascia. He is officially TBD, but it will be a difficult injury to play through. It’s devastating blow for Miami.

With Dragic out Tyler Herro got the second-half start, and in Game 1 he tied an NBA Finals record being -35 for the game (Kobe Bryant, Game 6 of 2008 Finals against Boston).

In addition, Bam Adebayo went back to the locker room in the third quarter, appearing to have aggravated the shoulder issue he had against Boston. The team said X-rays were negative, but he did not return to the game.

This game turned on Adebayo. On media day Tuesday he said, “You got to be smart about ticky-tacky fouls.” He knew he couldn’t get in foul trouble, and yet he did, picking up a second foul in the first quarter, sending him to the bench. Up to that point the Heat were up three, but when he went to the bench the Laker run started.

“Our guys are just hustling their tails off, flying around on the defensive end, and then playing effort offense, as well,” Laker coach Frank Vogel said of the Lakers’ run through the second and third quarters. “Really pushing the tempo on the break, attacking the paint, and crashing the boards. Just the pace of the game really picked up in those two quarters, and obviously, they were the difference makers.”

The Lakers got 13 points from Kentavious Caldwell-Pope, and 11 from Danny Green (who hit three from beyond the arc).

Miami’s defensive game plan was to double LeBron when he drove, make him pass out, and dare the other Lakers shooters to beat them. The Lakers role players did and that was a key difference.

Miami got 23 points on 13 shots from Jimmy Butler, but he also tweaked his ankle during the game. Herro had 14 points but on 6-of-18 shooting, and as a team the usually sharp-shooting Heat shot 31.4% from three.

Because of the rapid pace of games in the bubble, the Heat have just two days to regroup and try to make this look more like a series — Game 1 looked like the varsity vs. the JV.

“We talk about how damn near perfect that we have to play, and that was nowhere near it,” Butler said. “There’s nothing to be said. We can watch all the film in the world, we understand, we know what we did not do, what we talked about we were going to do, we didn’t do. We didn’t rebound, we didn’t make them miss any shots, we didn’t get back, all of those things led to the deficit that we put ourselves in.”