LOS ANGELES (AP) _ Chicago Bulls owner Jerry Reinsdorf disputed allegations in a lawsuit brought by his ailing sister.

Judith Reinsdorf, 59, filed a $5 million breach-of-contract lawsuit Wednesday, saying her brother cut off a $10,000 monthly stipend she had gotten for 16 years.

``He has not yet seen the lawsuit, but the allegations reported to him, he says, are totally without merit,'' Reinsdorf spokesman Tim Hallam said Friday.

The lawsuit claims Reinsdorf, 64, managing partner of the Chicago Bulls and Chicago White Sox, promised his mother that he would support his sister ``to maintain a substantial quality of life according to the family wealth.''

The payments stopped in 1998 because Judith Reinsdorf refused her brother's demand that she stop seeing their elderly mother, who died that year, the lawsuit said.

The nature of Judith Reinsdorf's health problems wasn't disclosed.