CM Punk has undergone minor back surgery and is reportedly doing well. UFC Vince President of Public Relations Dave Sholler tweeted this:
">@CMPunk. Everything went well & he's in great spirits. Make no mistake, he's out to prove a lot of people wrong. Stay tuned!
— Dave Sholler (@Sholler_UFC) February 11, 2016
Punk isn’t expected out long and will still make his UFC debut later this year.