Nash, who has made more than $100 million during his NBA career, filed divorce papers Dec. 15 in Maricopa County Superior Court.

Nash publicly announced Nov. 13 that he was divorcing his wife. It was the day after she gave birth to the couple’s third child, a son. The couple was together about nine years, and was married June 11, 2005. They also have twin daughters who are 6.

In the divorce filing, Nash said their marriage is “irretrievably broken” with “no reasonable prospect of reconciliation.”

In a statement issued Tuesday, Alejandra said she was surprised by her husband’s decision.

“I still do not quite understand what interests possessed Steve to do such a thing at this moment, as he told me of his desire to divorce the day before the birth of our son,” she said. “I thought I knew Steve better. But no matter how trying and disappointing the situation, Steve is the father of our family. I hope whatever the future holds this process will do right by all of them.”

In the divorce petition, Nash asks the court to uphold a premarital agreement signed three days before their wedding. Among other things, it says each side has waived any claim to permanent spousal maintenance.

Steven Wolfson, an attorney for Steve Nash, said he could not discuss details of the filing. But he said Nash would provide for his wife and children.

“Both she and the children will be provided for, there is no issue along those lines at all,” Wolfson said. “We are very hopeful that he and his wife and the children’s privacy can be respected as they work through this.”