Bolton manager Gary Megson returns to Villa Park on Saturday, eight months after his team's last visit when they "stared into the abyss of relegation".
Megson points to that date - April 5 - as the turning point in Bolton's fortunes, despite the 4-0 drubbing they received in the midlands.
He said: "I don't think you could go any lower than that. It was an awful performance and a shocking result. The way we played was so poor it had to be seen to be believed.
"The week before (against Arsenal) was a result which was so debilitating, like I've never known.
"We then went to Villa Park, and it was not just a bad game. The preparation was poor; there was a lot of things going on which shouldn't have gone on at a football club and the consequences were a 4-0 defeat.
"Things like preparation and the way it went before the game were a problem to us; coming back on the bus afterwards was a problem - and things needed to be sorted out.
"I knew from that point, regardless of what happened to us, that changes needed to be made.
"If I'm honest, I looked at that performance and said if we were going to do that for the rest of the season we were not going to win another point.
"Fortunately there were some changes made. We got a good result after that one (1-0 at home to West Ham) and gave ourselves a bit of an opportunity - but we certainly don't want to be in that position again.
"The players deserved great credit from getting back from what was the edge of an abyss at Villa Park."
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