Kim Pegula, the co-owner of the Buffalo Bills and Sabres, is undergoing treatment for an unspecified medical issue.
The Pegula family released a statement Tuesday morning acknowledging her health concerns.
"Kim Pegula is receiving medical care as a result of some unexpected health issues. We are very grateful for the progress she has made over the past few days. She has an exceptional team of medical experts at her side.
"We ask that you keep Kim and our family in your prayers and ask that you respect our need for privacy."
Spectrum News in Buffalo reported Tuesday night that Pegula is hospitalized in the ICU at Baptist Health Boca Raton Regional.