The Dolphins swapped veteran tackles on their practice squad Monday when they brought in Roderick Johnson and released Bobby Hart. Originally a fifth-round pick of the Cleveland Browns in the 2017 NFL draft, Johnson played 12 games with six starts for the Houston Texans over the past three seasons. Johnson was released by Houston on Aug. 18. Also on Monday, cornerback Jamal Perry reverted back to the practice squad after being elevated for the game against Buffalo. Perry also played in the opener at New England, but that time as a COVID-19 replacement.