‘Johnson, a 2015 first-round draft pick of the Texans, has dealt with injuries over the last three years, appearing in just 19 games and making eight starts in that time. He has played in all 16 games just once in his career, as a rookie in 2015. Johnson was released Tuesday by Houston, which elected not to pay his fifth-year option salary of $9.069 million. That was guaranteed for injury only, meaning Johnson has been medically cleared, or else he could not be cut. Looking at Johnson is a sign the Bills are interested in adding competition for Levi Wallace as the starter opposite Tre’Davious White.’