Port of Spain: Peter Siddle has flown home from Australia's tour of the West Indies and James Pattinson will follow him at the conclusion of the second Test in Trinidad after both were ruled out of the third Test, due to begin in Dominica on Monday.
Pattinson and Siddle, team-mates for club, state and country, have both complained of back trouble in the past week. Siddle's was at first described as "back stiffness" and emerged as he played in the first Test in Barbados, quickly ruling him out of the second.
He and the rested Ryan Harris were replaced as fast bowlers for the second match by Pattinson, who was playing his first Test since he suffered a foot stress injury during the second Test against India at the SCG in January. However Pattinson struggled for rhythm and left the field on the third afternoon following a throw from the outfield.