LOS ANGELES -- Ginger Zee has suffered a pelvic injury ahead of the "Dancing With The Stars" finale.

ABC News reports Zee has been diagnosed with sacral instability and a lumbar or lower back sprain.

The "Good Morning America" meteorologist tells ABC News that she continued to rehearse last week after suffering a lower back spasm. She says she later saw a physical therapist who told her that her "pelvis was just moving all over."

She says her pelvis is loose and unstable because she had a baby in December.

Despite the injury, Zee says she plans to take the floor Monday night against UFC fighter Paige VanZant and model Nyle DiMarco during the first night of the two-night season finale.