The report by AZCentral.com was based on the assessment of Diamondbacks manager Torey Lovullo.
Thole is seeking a second opinion on his injury but it could require surgery. He was injured while running the bases during a game last Wednesday. He said he felt his hamstring pop and had to be helped off the field.
Thole, 30, signed a minor-league contract with the Diamondbacks in January, and he was hoping to make the team as a backup.