The 28-year-old centre-back has joined Wolves for an undisclosed fee and has penned a four-year deal at Molineux.
Johnson made 88 appearances for Blues having joined the club from Cardiff City in the summer of 2009.
Johnson completes Wolves move
The 28-year-old centre-back has joined Wolves for an undisclosed fee and has penned a four-year deal at Molineux.
Johnson made 88 appearances for Blues having joined the club from Cardiff City in the summer of 2009.