The father of actress Lindsay Lohan was preparing for his bout against Todd Poulton when he was stricken Saturday, his girlfriend, Kate Major, told TMZ.com and RadarOnline.com.
"He had chest pains all day and pains down his left arm," she said, adding an ambulance was summoned after Lohan failed his pre-fight physical due to high blood pressure.
Lohan told RadarOnline Sunday morning that doctors told him he needed "tests and a procedure."
Major said Lohan has had previous heart trouble and will consult a cardiologist in New York this week.
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