It was the first sweep in the NBA Finals since 2007, when James was dismissed by a powerful San Antonio team in his first one.
The Cavaliers lack of a consistent third scorer in this series was evident.
The fourth quarter was utterly one-sided as a stunned Cleveland crowd watched in near silence while their team was outclassed up and down the court.
Klay Thompson (L) and JaVale McGee (R) start celebrations midway through the third quarter. Looking at this playoff journey, we knew it wasn't going to be as easy as previous year.
"The fact that they got here surprised me, actually", Warriors coach Steve Kerr said. "We had some early on, but we made the trades..." "It was definitely the toughest from the standpoint that it's the fourth year in a row that we've attempted to get back to the finals. It was hard and it gets more and more difficult as you go through". As for the speculation regarding LeBron James' future, well that really started last summer.
But there is history with the Cavaliers, who won the 2016 championship with James leading the way. "Very emotional, for a lot of different reasons".
"Pretty much played the last three games with a broken hand", said James, who wore a brace on the hand at his news conference.
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Cleveland can't jump wildly into the free-agent pool, as the organization is now $38.5 million over the salary cap for the 2018-2019 season, according to Sportrac (and that's assuming James plays for at least his $35 million option).
"I wondered if we could hit a switch, some way, somehow", James said. "My family is a huge part of whatever I'll decide to do in my career". "I don't have an answer for you as far as that".
"It was a big shot", Cavaliers coach Tyronn Lue said. His efficiency from range suffered in the last two games of the series, as he shot a combined 1-7 from three, though it is unclear how much the injury affected his performance.
In Games 2, 3 and 4, James scored 29, 33 and 23 points, respectively, as his team was swept by Golden State.
According to ESPN's Stephen A. Smith, James will be speaking to six other teams this season: the Boston Celtics, the Miami Heat, the Los Angeles Lakers, the Houston Rockets, the Philadelphia 76ers and the Golden State Warriors.
"I don't want to downplay anything but I don't want to act like this is the end of the road", Durant said. But the Warriors used a late burst to push their advantage back to nine points at halftime, and the Cavaliers never got closer.
He and Kevin Love led the Cavaliers with four points apiece in the quarter.