Former New Orleans Saints safety Steve Gleason left the Superdome during Monday night's game and was taken by ambulance to a local hospital, the Saints confirmed, according to NFL.com.
Gleason's wife, Michelle, said he was responsive, and she believed he would be all right, according to the report.
Late Monday, Gleason's family released a statement through Facebook: "We want to thank everyone for their love and concern for Steve. He is now resting comfortably and is being well cared for. He was experiencing flu-like symptoms and they are doing precautionary testing. No White Flags!"
Last year, Gleason, 35, publicly announced he has Lou Gehrig's Disease. He is confined to a wheelchair and has trouble speaking.
Gleason was a favorite of Saints fans, and a statue outside the stadium immortalizes a famous play by Gleason, who blocked a punt in the Saints' return to the Superdome following Hurricane Katrina.
Filmmaker Sean Pamphilon was working on a documentary about Gleason when he recorded Gregg Williams' pregame speech to the Saints before the playoff matchup against the San Francisco 49ers. Pamphilon released an audio of the speech, which became an element in the investigation of the so-called bounty program.