Cleveland - After a few minutes of the final buzzer, the dust had just begun to settle down in the Cleveland Cavaliers' 64-win season, without even a final, Donovan Mitchell returned to the sideline and sat on the bench.

He held the phone in his hand, but he didn't look at it. Instead, he sat with his lips, his eyes unchanged and his expression unchanged.

“I can’t believe it,” Mitchell said after the 114-105 season ended Tuesday night in Game 5. "Don't want to believe it. Don't want to believe it. Still don't want to believe it."

The Cavaliers led the Eastern Conference all season, starting 15-0 and finishing the second best record in franchise history, with three 10-game winning streaks. However, the Indiana Pacers were upset with a 4-1 series loss in the Eastern League semi-finals.

Indiana will face the Boston Celtics or the New York Knicks in the Eastern Conference Finals after winning all three series in Cleveland. The Cavaliers have not lost their home games in a row at any time this season, leading 19 points in the first half on Tuesday.

"I like playing in that F---ing arena," Mitchell said. "That kind of energy, that crowd. We were 0-3 at home and got the city down. This place was special. This place was really special and we didn't finish it."

The Cavaliers became the fourth team in NBA history, winning at least 64 games in the regular season, rather than going forward through ESPN studies.

Mitchell, who was the Cavaliers' best offensive player in the entire series, exacerbated 34.2 points, 5.8 rebounds and 3.8 assists in the half-game of Game 4, despite playing with a left ankle injury. Nevertheless, although Mitchell scored 35 points in Game 5 with 35 points in Game 5, he scored 4 goals (4 goals in 4 strokes).

In his career, Mitchell averaged 28.3 points in the playoffs, the seventh highest in NBA history. He played in the playoffs in all eight seasons of his career and scored two record-breaking teams in the game, but he still never got a game in the second round.

"We have a lot of positive things," Mitchell said of his team. "But we don't have capitalization. Now we have to use that motivation. Everyone will disband us."

Several Cavaliers' key rotation players were injured and changed the color of the series.

Darius Garland beat the first two games of the series (and four playoffs) due to a sprained left toe and returned 34% shooting (16.7%) in three games. Defensive Player of the Year Evan Mobley and the Cavaliers’ prize trade final acquisition De'andre Hunter hit Game 2 both games after being injured in Game 1. Mobley averaged 18.0 points and 9.8 rebounds on 58% shooting, but he also scored only 11 totals, but he also scored only 11 totals, but he scored 11 points in three quarters of the series.

"You just want you to be a whole, but I don't think it's an excuse," said Cavaliers coach Kenny Atkinson. "I don't want to say 'Oh, that's the reason, that's not the reason.' They're the better team."

Atkinson acknowledged some positive improvements for the team this season, but he still points out how the Cavaliers worked to match the physical and intensity of the Pacers throughout the series.

"I do feel like we're getting better," Atkinson said. "From a team perspective, we have a lot of people taking a step, so I just want to be clear about that. But the truth is, we're not at the level we want to be. So, I'm not happy with that. And if it all makes sense, we won't celebrate."

"Now, we have to figure out this last piece, how to overcome this hump. Honestly, I'm very much looking forward to more, especially the (first round) Miami Series."

Despite the disappointment of the loss, Mitchell agreed with the sentiment. He said Cleveland’s season took a step in the right direction, even when he wasn’t moving further. He doubled down on the core of the Knights and said “We’ll be back.”

"I'll go to everyone in that locker room to go to the bat," Mitchell said. "It's not easy to win. Some things have to be right. You have to do a great job, you have to take advantage of the opportunity. ... We have a window with this group, I believe in everyone here, we believe in each other. That's a bad thing. It's a terrible team, we're a good team. For five games... we don't show what we can do. Ultimately, that's what we judge.

“So whatever it is, go into the gym, the weight room, nutrition, and go back to it. Because you will all write to us.