Apparantly, the 31-year-old all-rounder is said to have given up the role to concentrate on improving his game. It may be added that Watson's form was questioned after a turbulent tour of India, in which Australia were whitewashed 4-0.
"I think it's the right time for a change for both the team and me," said Watson, who captained the side in their fourth Test defeat by India in March.
"I want to be the best Test player I can be for Australia," said Watson.
Watson was named vice-captain in March 2011 but has not scored a Test century since October 2010.




