Duncan Fletcher explains the background of Marcus Trescothick's Ashes withdrawal © Getty Images

Marcus Trescothick suffered a breakdown during day two of the match against New South Wales and had to be cared for by the team doctor for two hours before asking for a release from the Ashes tour. Duncan Fletcher, the England coach, had already considered sending Trescothick home when the incident occurred on Monday.

"We decided well maybe the best way to deal with it was bring his wife [Hayley] out," Fletcher told AAP. "And then I was a little bit uncomfortable about that, because was that going to help the problem?"

Fletcher was planning to talk to Trescothick, who scored 8 before being bowled by Brett Lee, after the game about whether he should end the tour before the first Test. "I was pretty uncomfortable about it [sending him home]," Fletcher said. "It was taken out of my hands when Marcus came off the field in the afternoon [on Monday] and there was a reoccurrence of the problem he had in India."

Trescothick flew back to England in the lead-up to the first Test against India in February and he also missed the Champions Trophy in the same country last month before declaring his fitness for the Ashes. "He was feeling pretty upset," Fletcher said of the SCG episode. "He wanted to go back." Trescothick boarded a plane for England on Tuesday and a replacement will come from the team of "shadow" players that is due in Perth this week.

"It was unpleasant in the change room with him," Fletcher said. "The doctor just had to sit and console him for about two hours or so. After a while the doctor spoke to him and said to him it's best if he does go home. I only told the chaps last night after the game."

Fletcher hoped the illness would not force the end of Trescothick's 76-Test career. "I can't say at this stage," he said. "It would be foolish of me to turn around and say anyone's Test career is over."