Australian wicket-keeper Brad Haddin today confirmed his retirement from international Twenty20 cricket to focus on Australian one-day and Test match cricket.Haddin played 25 matches for Australia at Twenty20 level, the last of these being against Sri Lanka in Kandy during the early stages of the current VB Tour.Haddin said a number of factors had contributed to his decision:"I thoroughly enjoy Twenty20 cricket and have taken great pride from playing all three forms of the game for Australia. However I feel the time is now right for me to concentrate on Test and ODI cricket."This decision has been made to prolong my effectiveness in these formats and provide me further time to prepare for the demands of ODI and Test cricket. I remain extremely determined to play cricket for Australia and believe this decision will help achieve this."I remain committed and very excited by my role as captain of the Sydney Sixers in the KFC Big Bash League and also with the Kolkata Night Riders in the Indian Premier League but look forward to the periods of downtime throughout the international season this decision will create.