Chris Rogers saw the Lord's grandstand move during the dizzy spell that ended his second innings in Australia's Ashes-levelling victory.
David Warner has recalled the moment his opening partner told him, between overs, what he was seeing as he became disoriented on the fourth morning of the second Investec Test.
After several minutes sitting down mid-pitch, and consultation with Australia's medical staff, Rogers retired ill on 49 - just a single short of what would have been his ninth Test half-century in his last 10 innings.
BECOME A WRITER
Do you have what it takes? Sign up today and send over your 250 word test article: http://gms.to/haveyoursay3
Article continues below
Australia team doctor Peter Brukner has since linked the dizziness to a "delayed ear problem" after Rogers had been hit on the helmet by a short ball from James Anderson two days earlier during his first-innings 173.
Initial scans have cleared the veteran batsman of serious injury - and although he underwent further scans on Wednesday morning and will miss the tour match at Derby, starting on Thursday, Australia hope he will be back for next week's third Investec Test at Edgbaston.
Article continues below
Warner admits, however, he did not know how to react after Rogers lost his bearings last weekend.
"That was bizarre," he told Australia's Daily Telegraph.
"I came down the wicket and I had to look twice, because I didn't really know what was going on ..."
"He actually said to me 'the grandstand is moving' and I said 'No, it's not'."
Thirty-seven-year-old Rogers had to miss two Tests in the Caribbean last month after suffering concussion when he was hit in the nets.
Warner added of the latest incident: "I was worried ... and so was he.
"I had no idea what was going on.
"He said: 'I don't know what's happening here'. So I said: 'Just sit down'."
Rogers, who has been in prolific form, has indicated this summer's tour will be his last before retirement.
"He is in a great frame of mind at the moment," said Warner.
"He said the other day he is playing his best to date for Australia.
"I would love him to go on, but he will know when it's time."
England have made one change to their 13-man squad since their embarrassing 405-run defeat at Lord's, bringing Jonny Bairstow in for the out-of-form Gary Ballance.
They have also announced Ian Bell, another man badly short of runs, will move up to the number three position vacated by Ballance.
Warner does not appear convinced that re-deployment of resources will work for the opposition.
"I think with Ballance and Bell where they are at the moment, they almost seem like two easy wickets... because they're not scoring as many runs as they would like.
"They've scored runs in the past, and Bell is an experienced player who has got a lot of runs on the board, but he's just in one of those patches.
"It only takes one good knock to come back out and get back into form.
"(But) I think 'Johno' [Mitchell Johnson] does (have some of the English players worked out)."
England all-rounder Moeen Ali has backed Bairstow to make a success of his Test return after 18 months out of the reckoning since his 14th cap.
Bairstow is back after five LV= County Championship Division One centuries this season, including a career-best 219 not out against Durham last month, and he celebrated his recall on Wednesday with an unbeaten 74 in title-holders and table-toppers Yorkshire's seven-wicket victory over Worcestershire at Scarborough.
He has 980 championship runs this season at an average of more than 108.
Moeen expects him to impress in place of his county team-mate Ballance.
He told Sky Sports News: "You don't really want to change too much. But it's happened now.
"Bairstow gets a chance and is in fantastic form, and I'm sure he's going to do quite well."
England's bowlers struggled at Lord's, where Warner sensed from the outset that new-ball pair James Anderson and Stuart Broad were feeling the effects of their exertions in the first-Test win at Cardiff.
"That first spell (at Lord's) was very unusual," he said.
"It just felt a lot different, especially from a batter's point of view.
"Broady bowled his first two down leg; Jimmy bowled a couple in the right areas, and then it sort of felt like his energy wasn't there.
"It's like they put all their energy in the first Test. I felt that as a batsman.
"I said to 'Bucky' [Rogers]: 'This could be our day to get on top of them'.
"Personally I felt they were a little bit flat in that first spell."