text: Background Rothwell is from Kenosha, Wisconsin, and both of his parents work in the restaurant business. His parents own a catering company. He is of Norwegian and Irish descent. Rothwell was an active child but suffered a bout with spinal meningitis when he was six years old. He was in a coma and temporarily blind, while the disease made him almost obese. The young Rothwell, who struggled with his weight and identity in his adolescent years, was also troubled growing up and was often involved in fighting and violence at Westosha Central High School. By the time he was a junior in high school, Rothwell knew that he enjoyed fighting, and in 1999, at the age of 17, he began learning self-defense. In July of that same year, after he had been in three professional fights, he and a friend were involved in a car accident with a drunk driver. Rothwell's friend, who was 19 years old, died two weeks later, and Rothwell suffered a significant head injury, in addition to broken ribs. The event changed Rothwell's life, causing him to feel as though he has a purpose to complete.
  Mixed martial arts career
  Early career
  Rothwell began his training in September 1999, before joining Miletich Fighting Systems in 2002.
  Rothwell made his professional debut in early 2001 in his home state of Wisconsin and dominated his opponent, winning by TKO only 21 seconds into the fight. He then won his next three fights, all under two minutes into the first round and all with strikes. Rothwell then faced future two-time UFC Heavyweight Champion and fellow Miletich Fighting Systems fighter, Tim Sylvia. Rothwell was handed his first career loss in a decision. However, he bounced back and won his next seven fights, all by submission or TKO, before a unanimous decision loss to Mike Whitehead.