Batsman Jonathan Trott says England will be disappointed to have finished day one of the fourth Ashes Test on 238-9.
Having won the toss and batted in Durham, England looked on course for a good score at 107-1, with Trott and skipper Alastair Cook going nicely.
But Trott was caught at short-leg off Nathan Lyon after an assured 49 and, although the hosts went on to reach 149-2, wickets then began to tumble, Cook's 51 proving the top score of the day.
Trott said: "It was a difficult day and quite hard to score once the ball got a bit older after around 40 overs.
"I think, considering the position we were in, at just over 100-1, we'll be a bit upset with the position we find ourselves in at the close of play.
"It was little bit difficult once they put catching fielders in front of you, and the pitch didn't come on as quickly as Old Trafford did.
"But I suppose we've got nearly 240 on the board, so hopefully we can scrape a few more tomorrow and then get some early wickets.
"Nobody is really sure what a good score is. Australia bowled well and hopefully we can create the same kind of pressure tomorrow."
Trott was noticeably fluent himself and added: "I went out and tried not to worry about technique but just concentrated on scoring runs.
"I felt I timed the ball pretty well but unfortunately got out to a softish dismissal, which was probably a catalyst for our dismissals today.
"Hopefully we can put it right second innings and get some wickets tomorrow."
Trott has been unlucky at times this series but said: "That's what happens when you play bad shots.
"Sometimes it happens, no one has a divine right to score runs. Sometimes things go against you."