CHICAGO (AP) A court filing by the estranged wife of Chicago Cubs great Ernie Banks contends the Hall of Famer was diagnosed with dementia days before he signed a will benefiting his caretaker.

Banks was in a protracted divorce proceeding with fourth wife Elizabeth Banks when he died in January at 83. She is challenging a will that gives Banks' assets to caretaker Regina Rice.

In March, Cook County Judge James Riley confirmed the will after two law clerks testified they observed it being signed.

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The Chicago Tribune reports (http://trib.in/1LOpoRr ) the petition, made public Monday, says Ernie Banks' health had turned for the worse in October when he was injured in a fall. The filing says that after he was treated, Rice took him to live with her at her Plainfield home.

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Information from: Chicago Tribune, http://www.chicagotribune.com