Australia's Michael Clarke (L) celebrates his 100 with teammate Mike Hussey (R) against South Africa on the first day of the second cricket Test match at the Adelaide Oval on November 22, 2012. AFP PHOTO/David Mariuz IMAGE STRICTLY FOR EDITORIAL USE - STRICTLY NO COMMERCIAL USE
Australian cricket captain Michael Clarke pauses as he reads a statement on behalf of the Australian cricket team in response to the death of cricketer Phil Hughes to the media during a press conference at Sydney Cricket Ground on November 29, 2014 in Sydney, Australia. Hughes died on November 27, 2014 from the injuries sustained from being struck on the head while batting.
Michael Clarke of Australia reacts while bowling during Day Two of the Second Test between Pakistan and Australia at Sheikh Zayed Stadium at Sheikh Zayed stadium on October 31, 2014 in Abu Dhabi, United Arab Emirates.
Michael Clarke of Australia and Steven Smith leave the field for a rain delay after Clarke reached his century during day two of the First Test match between Australia and India at Adelaide Oval on December 10, 2014 in Adelaide, Australia.
Michael Clarke of the Blues runs onto the field during day three of the Sheffield Shield match between the Victoria Bushrangers and the New South Wales Blues at the Melbourne Cricket Ground on November 8, 2013 in Melbourne, Australia.
Michael Clarke of the Blues reacts after a Nathan Lyon delivery almost took a wicket during day three of the Sheffield Shield match between the Victoria Bushrangers and the New South Wales Blues at the Melbourne Cricket Ground on November 8, 2013 in Melbourne, Australia.