Jacob Christopher "Tito" Ortiz (English: /tɪtɵ ɔərtɪs/) (born January 23, 1975) is an American mixed martial artist and former UFC Light Heavyweight Champion, having held the title from April 14, 2000 to September 26, 2003. Along with fighters like Randy Couture and Chuck Liddell, he was one of the sport's early stars. Ortiz ultimately became the biggest pay-per-view draw of 2006 for his fights with Liddell, Forrest Griffin, and Ken Shamrock.

Outside of his fighting career, Ortiz is the CEO of the Punishment Athletics MMA equipment and clothing line. He also owns an MMA training gym called Punishment Training Center, which is located in Huntington Beach, CA.

Jacob Christopher Ortiz was born to Samuel and Joyce Ortiz. He received his nickname "Tito," which means tyrant, from his father when he was a year old. He is the fourth child of his mother, Joyce, who had three sons from a previous marriage. His mixed heritage (Mexican father, American mother) has been reflected in his ring entrances as he has borne both Mexican and American flags.

Brock Edward Lesnar (/ˈlɛznər/; born July 12, 1977) is an American professional wrestler, actor, former mixed martial artist and amateur wrestler, signed with WWE and appearing on its Raw brand. He is also a former UFC Heavyweight Champion and former #1 ranked mixed martial arts (MMA) Heavyweight by Sherdog; he was ranked #5 before he announced his retirement at the end of 2011. Lesnar is an accomplished amateur wrestler, winning the 2000 NCAA heavyweight wrestling championship and placing second in 1999, losing in the finals to 1999 world freestyle wrestling champion and future New England Patriots offensive lineman Stephen Neal.

He gained prominence in World Wrestling Entertainment (WWE) from 2002 to 2004, where he is a former three-time WWE Champion, becoming the youngest WWE Champion at age 25 with his first reign. Lesnar was the 2002 King of the Ring and the winner of the 2003 Royal Rumble. After leaving WWE, Lesnar pursued a career in the NFL. He played during the preseason for the Minnesota Vikings, but ended up being a late cut. Lesnar returned to professional wrestling at the end of 2005, and joined New Japan Pro Wrestling (NJPW), where he won the IWGP Heavyweight Championship in his first match. He was officially stripped of the title by NJPW in July 2006, and took the physical belt with him to Inoki Genome Federation (IGF), where he was still recognized as IWGP Champion until June 2007.

Phillip Jack Brooks (born October 26, 1978), better known by his ring name CM Punk, is an American professional wrestler signed to WWE and appearing on its Raw brand as the reigning WWE Champion.

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

In addition to these championships Punk has also won the World Tag Team Championship (with Kofi Kingston), and the WWE Intercontinental Championship making him the nineteenth WWE Triple Crown Champion and the man to achieve this honor fastest at 203 days. Between WWE and Ring of Honor (where he is also a two-time World Tag Team Champion), Punk has won a total of eleven championships. He was also the winner of the 2008 and 2009 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, where he was the first head trainer of the ROH wrestling school as well as winning both of their championships. In 2005, Punk signed a contract with WWE and was sent to its developmental promotion, Ohio Valley Wrestling (OVW), where he won every championship available in the promotion. Throughout his career, Punk has consistently used the gimmick of being straight edge, a lifestyle he follows in his actual day-to-day life. Depending on Punk's alignment as a crowd favorite or villain, he emphasizes different aspects of the culture to encourage the desired audience reaction.