Retains title
At the 2015 WWE Royal Rumble, Lesnar successfully defends the WWE World Heavyweight Championship against John Cena and Seth Rollins in a triple threat match after pinning Rollins. The following night, Lesnar is asked about the possibility of suffering a broken rib during the encounter.
That is true. I have suffered from a lot of injuries throughout my career, but when the time comes to win I get through it, and that’s exactly what I did last night.
Cena vs Rollins – Steel Cage
Rollins defeats Cena in a singles competition steel cage match in the main event of WWE Monday Night RAW. Rollins picks up the victory by exiting the cage after interference from Lesnar.
Lesnar- Cena WWE Championship at Night of Champions
Lesnar retains WWE World Heavyweight Championship after defeating Cena by disqualification due to outside interference by Seth Rollins. Rollins strikes Cena with the Money in the Bank briefcase to cause the match to end.
Lesnar – Cena WWE championship
Lesnar defeats Cena at Summerslam to become WWE World Heavyweight Champion.
Ends the streak
Lesnar defeats The Undertaker in one on one match to end Undertaker’s 21 year undefeated streak at Wrestlemania 30.
When Brock Lesnar defeats The Undertaker at WrestleMania, it will not trivialize nor negate or minimize the magnitude of the accomplishment that is 21 victories. Brock Lesnar will never amass 21 victories at WrestleMania. He’ll be too old. John Cena is never going to get to 21 in a row. They named the Battle Royal after Andre the Giant. He couldn’t get three in a row
Punk vs Lesnar – Summerslam
Lesnar defeats Punk in no disqualification singles action at WWE Summerlsam. Lesnar picks up the pinfall victory after delivering an F5 to Punk on a steel chair at twenty-five minutes and fifteen seconds.
Goldberg – Lesnar Wrestlemania 20
Goldberg defeats Lesnar at Wrestlemania 20 on his last night with the company.
WWE Champion
Lesnar defeats The Rock at Summerslam to win his first WWE championship. This makes Lesnar the youngest WWE champion ever at age 25. Lesnar’s manager, Paul Heyman:
The man is legitimately the only person in history to hold the NCAA Division I Heavyweight Championship, the Undisputed UFC Heavyweight Championship and the Undisputed WWE Heavyweight Championship. I could talk about him all day long; I am such an admirer of his talents and his greatness and I think the world of him as a human being.