O’Sullivan dumped out as top seeds suffer but Allen through in style
Mei Xiwen produced the upset of the day as he beat five-time world champion Ronnie O’Sullivan 4-3 at the last-16 stage of the English Open in Crawley.
- Trump shocked by world No 80 Walker at English Open
- Robertson knocked out of English Open by Zhao Xintong
- Watch: The moment Mei sank O'Sullivan at the English Open
Mei, 37, produced breaks of 69, 52 and 71 to progress to a career-first ranking quarter-final, where he will face Mark Selby, who beat Guodong Xiao 4-1.
The Rocket led 2-1 and 3-2 but some uncharacteristic loose play from O’Sullivan allowed the world number 70 Mei back in to snatch the last two frames to seal the win.
O’Sullivan, whose English Open challenge has been marked by inconsistency, looked on course for the quarter-finals when a majestically crafted 134 put him within a frame of victory.
Mei's shock win means the world's top four players - Judd Trump, O'Sullivan, Mark Williams and Neil Robertson - have all been dumped out of the first Home Nations tournament of the year in the last 24 hours.
Both players struggled to adapt to the conditions early on with the eventual victor admitting the white "played heavy" in the early stages.
But it was Allen, now one of the heavy favourites for the English Open title, found his form quickly, making a break of 60 to take the opening frame.
Hawkins then gifted him an opportunity in the second as he missed the red as he split the pack and Allen navigated the table for 89 and a 2-0 lead.
The Pistol then hit his straps with clearances of 100 and 129 to face the winner of Lee Walker vs Gary Wilson.