Baseball great Roberto Alomar has full-blown AIDS but insisted on having unprotected sex, his ex-girlfriend charged Tuesday in a bombshell lawsuit.

"The test results of him being HIV-positive was given to him and the plaintiff on or about Feb.6, 2006," the $15 million negligence suit says.

His lawyer, Charles Bach, would not say whether Alomar is HIV-positive. "We believe this is a totally frivolous lawsuit. These allegations are baseless," Bach said. "He\'s healthy and would like to keep his health status private. We\'ll do our talking in court."

Alomar\'s father, Mets bench coach Sandy Alomar, said the claims were news to him. "That\'s the first time we ever heard of that," he said from Puerto Rico.

He didn\'t think his son could keep a serious illness secret. "I imagine I would know," he said.

In April 2005, Alomar told Dall he was suffering from erectile dysfunction and confided "he was **** by two Mexican men after playing a ballgame in New Mexico or a Southwestern state when he was 17," the suit says.

A few months later, the couple moved to Cleveland, where Alomar supposedly tested positive. Dall claims that after she learned Alomar had AIDS, she tested negative and no longer had unprotected sex with him.

They broke up last October.

She is demanding at least $15 million in punitive damages, claiming Alomar caused her emotional distress and exposed her children to the virus.

"He jeopardized the health, well-being and life of the plaintiff, which caused her to have a fear of contracting AIDS, often referred to as AIDS phobia," the suit says.