Johnson was signed to the Denver Broncos ' practice squad on December 8 , 2010 .
Johnson was released on September 3 , 2011 , but was re-signed to the practice squad the following day and later promoted to the active roster on September 16 .
Johnson was signed to the Denver Broncos ' practice squad on December 8 , 2010 , and released on September 3 , 2011 , but was re-signed to the practice squad the following day and later promoted to the active roster on September 16 .