Australia last won an Ashes series in England in 2001 and captain Michael Clarke is expecting five hard Tests.
Michale Clarke said to Johnson is at completely ready to torment England's batsmen again in the Ashes series.
Mitchell Johnson against the England to fragment during the 2013-14 Ashes 5-0 whitewash, taking 37 wickets at 13.97.
Mitchell Johnson has never been as impressive in English conditions, but Clarke believes Johnson will again create Australia's hopes when the first Test starts on Wednesday at the Swalec Stadium.
Clarke told to reporters Mitchell Johnson is as ready as I've seen him. His bowling power improves to very well and his bowling as fast as I've always seen him bowl in the nets and he's turned it too. so very dangerous to face him.
George Bailey did mean to discourage excitement about Johnson’s comeback, advice he was back to his brutal best in practice this week.
George Baily said We are really happy that Mitchell Johnson is back to this tournament but not that happy that he has continued make up his overs in the nets