The Westgate Las Vegas SuperBook agrees.
"They didn't give us a chance [against the Wizards]," Thomas said after Boston's Game 7 win over the Washington Wizards. "They didn't give us a chance when we were down 2-0 to Chicago. ... They don't ever give us a chance, and we just keep going; we don't care about what others say."
The Celtics opened up as +425 underdogs to win the series at Westgate, with the Cavaliers as -550 favorites.
By Tuesday morning, Cleveland had been bet up to a -700 favorite, and Boston was +500. A $100 bet on the Cavaliers to win the series would now win $14.29. That same $100 bet on the Celtics would win $500.
Westgate Las Vegas SuperBook manager Jeff Sherman told ESPN that the book took a "five-figure bet" on Tuesday morning, which pushed the odds to Cavaliers -900, Celtics +600.
The Cavaliers come into the series well-rested, as they haven't played a game since May 7. The series begins Wednesday evening, with the Cavaliers favored by 3.5 points in Boston.
Boston is also a 40-1 long shot to win this year's NBA title, while Cleveland has 5-2 odds.