faced Edward Faaloloto on June 26, 2011, at UFC on Versus 4 and won the fight via TKO in the first round. Johnson faced Paul Sass on October 1, 2011, at UFC on Versus 6. He lost the fight via submission in the first round. 2012 Johnson was expected to face Cody McKenzie on January 28, 2012, at UFC on Fox 2. However, McKenzie was forced out of the bout with an injury, and he was replaced by Shane Roller. Johnson defeated Roller by unanimous decision, with all three judges scoring the bout 29–28. Johnson faced Tony Ferguson on May 5, 2012, at UFC on Fox 3, replacing an injured Thiago Tavares. Johnson won the fight via unanimous decision. Johnson was expected to face Danny Castillo on September 1, 2012, at UFC 151. However, after UFC 151 was cancelled, Johnson/Castillo was rescheduled and took place on October 5, 2012, at UFC on FX 5. After almost being finished in the first round, Johnson survived and came back to win via KO at 1:06 into the second round. Johnson was awarded Knockout of the Night honors for his performance. Johnson fought Myles Jury on December 29, 2012, at UFC 155. He lost the fight via unanimous decision. 2013 Johnson faced Reza Madadi on April 6, 2013, at UFC on Fuel TV 9. Despite almost finishing Madadi with a head kick in the first round, Johnson eventually succumbed to the wrestling of Madadi and lost the fight via submission in the third round. Johnson faced Joe Lauzon on August 17, 2013, at UFC Fight Night 26. He won the fight via unanimous decision after outstriking Lauzon for all three rounds. Johnson faced Gleison Tibau on December 28, 2013, at UFC 168. He won the fight by knockout in the second round. 2014 Due to an injury to Ross Pearson, Johnson stepped in to face Melvin Guillard at UFC Fight Night 37. Johnson won the fight via unanimous decision. Johnson was expected to face Josh Thomson on July 26, 2014, at UFC on Fox 12. However, on July 11, the UFC announced he had been pulled from the bout. It was later revealed that Johnson was pulled from the bout and would not compete during the remainder of 2014 his arrest in Palm Beach County, Florida in April 2014. 2015 Johnson faced Edson Barboza on February 22, 2015, at UFC Fight Night 61.