Phillip Jack "Phil" Brooks (October 26, 1978), better known by his ring name CM Punk, is an American mixed martial artist and former professional wrestler. He was titled in the company as "the longest-reigning WWE Champion of the modern era", having held the title for 434 days from November 20, 2011 to January 27, 2013.Punk is officially recognized as having the sixth-longest championship reign of all time.

Sammartino's reign occurred when it was called 'NWA Championship' and his second reign made him the longest-reigning in the 'WWWF Championship' as well (narrowly eclipsing Morales).

In professional wrestling, Punk is a seven-time World Champion, having held the ROH World Championship and ECW Championship once each, WWE's World Heavyweight Championship three times, and the WWE Championship twice.

He is the fifth longest-reigning champion in the title's history, after Bruno Sammartino & Bob Backlund (who had over 2000) and Hulk Hogan & Pedro Morales (who had over 1000).

Punk's reign is the longest during the time it was called 'WWE Championship' while Hogan's is the longest during the time it was called 'WWF Championship' (narrowly eclipsing Backlund's second reign).

As part of the training, he wrestled at Steel Domain Wrestling in St. It was in the Steel Domain that he met Scott Colton, who soon adopted the stage name Colt Cabana.

Punk and Cabana became best friends and spent most of their early career together working in the same independent circuit promotions, as opponents or allies.

He was also the winner of the 20 Money in the Bank ladder matches (the only wrestler to win the match twice in a row), and was the 2011 Superstar of the Year Slammy Award winner.

Punk initially came to prominence through his career on the professional wrestling independent circuit, primarily as a member of the ROH roster.

Depending on Punk's alignment as a fan favorite or villain, he has emphasized different aspects of the culture to arouse the desired audience reaction.

Following his retirement from professional wrestling, Punk had signed with a deal with Ultimate Fighting Championship (UFC) and began to pursue a career in mixed martial arts.

A few months later, Kelly requested some time off from the company.