The Boston Celtics are 0-3 now this season against the Cleveland Cavaliers and Toronto Raptors.

The Celtics lost 124-118 to the Cavaliers on Thursday.

"We're not on that level yet," Isaiah Thomas said. "We're not on Cleveland's level, so we got work to do. And we gotta figure it out.

"The real good teams, you make a mistake and they capitalize on it, whether it be the Cavs, the Warriors, the Spurs -- those type of teams don't let you live when you make a mistake. We're not on that level yet."

Thomas had 31 points in the game.

"[The Cavaliers] know what we can do, we know what we can do, we just gotta play better," said Thomas.