From the Madison Square Garden email distribution, the following was sent to any ticket holders for tonight:
>WWE is sorry to announce that CM Punk will be unable to perform tonight due to illness concerns. We assure fans that “Dirty” Dom Mysterio will have an amazing opponent in his absence and that CM Punk will return as soon as he is able. Full refunds are available for anyone who purchased a ticket for tonight’s show and can be obtained by contacting Ticketmaster.
There’s a lot of illness going around so I’m not shocked this happened, but I’m pretty bummed. I was taking my wife’s stepson tonight and kind of hoped we’d get to bond over the show. I’m not a huge WWE fan but I love CM Punk.