Australia fast bowler Ryan Harris has been ruled out of his side's matches against Pakistan this month.
Harris is set to return to Australia after injuring his right knee during the ODI victory over England at Lord's on Saturday.
The loss of the 30-year-old seamer means the tourists need to find a replacement for this week's Twenty20 internationals and the following two Tests against Pakistan in England.
Harris' misfortune is the latest in a run of injury setbacks for Ricky Ponting's team, who were already without several of their usual pace bowlers on arrival in the UK, and then had to accept first-choice wicketkeeper Brad Haddin would not be fit in time to take any part this summer.
Australia physiotherapist Alex Kountouris said: "Ryan Harris injured his right knee during the fifth one-day international against England.
"He will take no further part in the Twenty20 or Test matches against Pakistan in England and will return to Australia for further assessment."
A replacement for Harris is expected to be named within 48 hours.
Meanwhile, Ponting has already made it clear that he is tempted to try to persuade Shaun Tait, called up for a return to ODIs after off-spinner Nathan Hauritz injured his foot last week, that a Test comeback may be feasible too.
Tait impressed with a fiery spell of pace bowling at Lord's.