Clarke missed the final Test against India this year and the entire Champions Trophy with a back injury, sparking concerns he would not be fit for the first Ashes Test against England starting at Trent Bridge on July 10.
Clarke's return will be a welcome boost for the beleaguered Australians who sacked their coach Mickey Arthur on Monday and failed to reach the Champions Trophy semi-finals.
Batsman David Warner was suspended until the first test after punching England batsman Joe Root during a night out in a Birmingham bar.
Australia team - Ed Cowan, Shane Watson, Usman Khawaja, Phillip Hughes, Michael Clarke, Brad Haddin, James Faulkner, Peter Siddle, Nathan Lyon, James Pattinson, Mitchell Starc.
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