UFC discussing CM Punk vs. Mike Jackson for Chicago pay-per-view in June

Is it clobberin’ time again?
The UFC is currently discussing booking CM Punk vs. Mike Jackson for the UFC 225 card on June 9 in Chicago, MMA Fighting has learned. According to multiple sources, discussions are in the early stages with no final decision made just yet.
The promotion officially announced its return to Chicago last week for the pay-per-view event, and that immediately led to speculation whether Punk, né Phil Brooks, who lives in Chicago, would be on the card. Punk even