Jonathan Trott says continuing to play cricket would not be fair on his team-mates, while he recovers from a stress-related illness.
The Warwickshire and England batsman had returned to action for his county after coming home early from England's tour of Australia this winter, due to anxiety problems.
It was with the best intentions and hope that I returned to cricket with Warwickshire this month. Much to my disappointment, since my first game, I have felt the same anxieties that occurred during my time in Australia.
It is not fair on my team-mates or myself to continue when I am unable to function at 100%. In order to play at the highest level you have to be at 100% and be able to concentrate fully at all times. Sadly I am unable to do this.
With this in mind I have decided it is best for all involved that I continue my recovery on the sidelines for the time being. I would like to thank Warwickshire and the ECB for their continued support through this time.
England batsman Jonathan Trott will take an indefinite break from all cricket after suffering a repeat of the stress-related illness which forced his early departure from the 2013-14 Ashes series, the England and Wales Cricket Board and his county Warwickshire have jointly announced.
England and Warwickshire cricketer, Jonathan Trott, is to take a break from competitive cricket for a second time in five months, due to a stress-related illness, according to reports on Thursday evening.
The Daily Mail reports the 32-year-old will take a break to deal with his situation.
He left the Ashes tour in November after the first Test, and Australia went on to whitewash England 5-0 in the series.
Trott has started the season with Warwickshire, and played in the County Championship match against Sussex this week.
Warwickshire's Jonathan Trott is out of the rest of the Ashes series in Australia. He flew home at the end of the first test in Brisbane, with what is being described as a long-term, stress-related illness.
Trott has been one of England's most important batsman in recent years, but he has come in for heavy criticism in Australia, getting just 19 runs in two innings as England collapsed to a 381 run defeat over the weekend.
He will be taking a break from the game, and the management at Warwickshire have said Trott has their full support. He also received the support today of former England players including the ex-Leicestershire captain Matthew Hoggard.
We fully support his decision to leave the tour and the ECB will provide all the assistance we can to help Jonathan and his family through this period. Jonathan has asked for privacy while he recovers and I would urge everyone to respect that.
Jonathan Trott has taken a brave step in leaving England's Ashes tour to battle a stress-related illness, the Professional Cricketers' Association (PCA) have said.
The PCA chief executive Angus Porter said: "This does require bravery, admitting to a problem very publicly and leaving a tour and team-mates, that's the brave thing to do.
"It would have been much easier in many ways to plough on, and not address the problem, and maybe that's what people would have done 10 or 20 years ago and we'd never have known why they performed badly.
"At least we've grown up to the point that people acknowledge just as you shouldn't play on with a knee injury you shouldn't play on with a brain injury - you should seek treatment and get yourself right for the future."
Warwickshire all-rounder, Jonathan Trott, has left England's tour of Australia with a stress-related condition.
Dougie Brown, Director of Cricket at Warwickshire CCC, said: “Jonathan’s health and well-being is obviously our utmost priority during this period. He is an outstanding cricketer and the Warwickshire squad will give its full support to him and his family over the next few weeks.”
Former England captain Nasser Hussain says he expects the sledging to continue in the Ashes series despite Jonathan Trott's departure with a stress-related illness.
Trott was described as "poor and weak" by Australia's David Warner after the batsman struggled in the opening test.
"I don't expect the other sledging to die down too much at all - this is an Ashes battle and it will continue to be an Ashes battle. I don't expect it to be played any differently," Hussain told Sky Sports.
The opening week of the Ashes series has been especially heated, with with Australia captain Michael Clarke warning England tailender James Anderson to "get ready for a broken f****** **arm" as he prepared to bat, a comment which has landed Clarke a hefty fine.
Former England cricket captain Michael Vaughan has admitted he feels guilty for criticising Jonathan Trott's performance in the opening Ashes test after it was revealed the England batsman was struggling with a stress-related illness.