-->Anna Kournikova’s parents are reportedly suing her for what they say is their share of a Miami house the tennis star purchased, the British news agency Sky News reported.

Alla and Sergei Kurnikov are claiming they jointly own the star’s waterfront mansion, according to The Sun. The tennis star bought the property on Miami Beach Sunset Island for £3.5 million ($6 million) four years ago and lives there with singer boyfriend Enrique Iglesias, Sky news reported.

It is now said to be worth closer to £5 million ($9 million) and her parents have filed a lawsuit demanding a two-thirds share.

“She’s taking the position that this is her house,” the news agency quoted the parent’s lawyer, Howard Rudolph, as saying. “Mom and dad were her managers and promoters. This was a house they all shared.”

Anna has spent the past few months on a world tour with Enrique. She is currently in Moscow with the pop icon, who is set to perform several concerts in Russia.

The Sun quoted a source as saying that Anna and her parents fell out when they stopped working together. “It’s very sad but they are all very stubborn.”