OAKLAND, Calif. -- After the changed call on LeBron James and before JR Smith did, well, what he did, George Hill missed a free throw that could've won Game 1 of the Finals for the Cavaliers.

And he stayed up "most of the night" reliving it.

"I stayed up most of the night rewatching the free throw, rewatching the play," Hill said Friday.

The Cavs are still a ball of emotion after letting a golden opportunity slip through their hands in a 124-114 loss to the Warriors Thursday.

Hill, who is playing in his first Finals, called it "probably number one" in terms of the worst losses of his career. He missed the second of two free throws with 4.7 seconds left in regulation and the score tied at 107. On Friday, the league ruled he should have been given another shot, as Draymond Green was in the lane too early.

"This one hurt," Hill said. "This one hurt bad ... one of the worst feelings ever."

It wasn't just Hill's miss, of course. About 31 seconds of game time earlier, James seemed to draw a charge on Kevin Durant with the Cavs ahead 104-102. But referees reviewed the call and overturned it, changing it to a blocking foul on James. Durant made both foul shots.

After Hill's miss, well, Smith rebounded the ball but instead of shooting it or passing it or making a play toward the rim, he dribbled the ball out to the perimeter and time expired.

Smith claimed he knew the game was tied when he did it, but coach Tyronn Lue said he spoke with Smith Friday and wouldn't say what the two discussed.

Smith appeared to say during the game that "I thought we were up" as James was yelling at him.

Backing it up even further, James became just the sixth player in history to score at least 50 points in a Finals game (51 -- a playoff career high for him), and the first to ever do it in a loss.

The Cavs destroyed Golden State on the glass -- 53-38 -- and collected 21 second-chance points.

The Warriors never lose at home and never lose Game 1 of the Finals, and on a night when James was historically good and the Cavs were in prime position to win, they couldn't get it done.

It's a lot to handle, but the Cavs insist they're coping.

"Listen, we're not broken," Lue said. "We lost a game, you gotta win four in this series, we understand that. And it was a tough game for us. We played well enough to win, but we didn't, so now we've gotta move on. The guys' confidence is not shaken."

James was poked in the eye by Draymond Green in the first quarter on Thursday, and it was bloodshot and swollen by game's end. James said his vision was blurry, but Lue said his superstar was "fine" on Friday.

James handed in yet another game for the ages in Game 1. He shot 19-of-32 with eight rebounds and eight assists. Lue said it was a "great performance" and that James did "everything he could to will our team to win." Asked if James could play any better than he did against the Warriors, Lue said "I hope so."

"I know that's asking a lot, but we need him to lead by example," Lue said.

Kevin Love scored 21 points with 13 rebounds, and will not be suspended by the league for momentarily being on the court (despite being out of the game) when a fracas began between Tristan Thompson and Green.

Smith, who was still being maligned nationally for his play at the end of regulation, scored 10 points, and Larry Nance Jr. was brilliant in his Finals debut with nine points and 11 rebounds off the bench.

As for Smith, Lue said "just him fighting for that rebound at the end of the game was important.

"Whether he knew time or score or not, getting the rebound and not getting the shot off, it was big, because they could have gotten the rebound, called time out and, like I said, won in regulation," Lue said. "So that's behind us. It's over. There's nothing you can do about it now. We've got to focus in on Game 2."

The Cavs were going to go to dinner Friday in San Francisco, Lue said. Hill insisted the team was not demoralized, which he said goes for him too, even after the sleepless night.

"If you look at Game 1, we can win this series, playing the right way," Hill said. "I'm sure if you look at everyone in this locker room felt that we gave one away and we missed an opportunity, but, like I said we still have a game on Sunday to make up for it and do the best we can to get back on the right track."