Michael Clarke one of the greats, says Shane Warne ASHES-WINNING skipper Michael Clarke could go down in history as one of Australia's greatest cricket captains, according to Shane Warne. Granted, the two are close friends and Warne for some time has actively influenced the way Clarke thinks about the captaincy so his glowing endorsement of him in his column for the London Daily Telegraph will be seen in much the same light as Joe Hockey lauding Tony Abbott, save for the fact that Clarke and Warne have never traded punches at Sydney University rugby training.