Ronnie O’Sullivan was hammered 5-0 by the world No.60 in qualifying for the German Masters.
Iranian journeyman Hossein Vafaei whitewashed the snooker icon within an hour in a behind-closed-doors match at the Chase Leisure Centre in Cannock, Staffordshire.
The six-time champion was far from his best as he scored just 108 total points in five frames, while Vafaei was in the form of his life.
The 27-year-old made the most of superb breaks of 52, 50, 81, 141 and 64 to complete a memorable victory in just 55 minutes.
While this was undoubtedly the best night of the Persian’s nine-year career, it was one of the Rocket's more frustrating evenings, which was shown through an ill-tempered break.
At the beginning of the final frame, O’Sullivan seemingly smashed the cue ball as hard as he could to make the break, without much thought of where he wanted it to go.
He did fluke one of the reds, but it did not result in the former world No.1 being able to even win a consolation frame.
Vafaei still has to win one more round of qualifying against either Steven Hallworth or Andrew Higginson today to secure a spot in the tournament in Berlin next January.
This result comes after O’Sullivan claimed he was “baffled” by the next generation of snooker players.
In an extended interview ahead of the English Open, he said: "They come in, they haven't really had an amateur or junior background and they turn professional and the ego kicks in.
"'I'm a professional playing Mark Williams in the first round', and they're not really that good.
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"With some of these guys, they just turn up now because it's open to anybody, really. They get peppered for the whole year and it's very hard to then kind of like squash that ego.”
He added: “They are very inexperienced, they probably believe in themselves a bit too much for how good they are, and that can be a dangerous thing.”