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Zhao Xintong won the 2021 UK Championship
Phil Cartwright
BBC Sport journalist
Halo World Championship
Venue: Crucible Theatre, Sheffield Dates: 19 April to 5 May
Coverage: Watch live on BBC TV, BBC iPlayer, BBC Sport website and app; live text coverage of selected matches; updates on BBC Radio 5 Live
Zhao Xintong wrapped up a comfortable 10-4 victory over Jak Jones to knock the 2024 runner-up out of the World Snooker Championship at the Crucible Theatre in Sheffield.
Both of last year's finalists have exited the 2025 event in the first round, following defending champion Kyren Wilson's defeat by Lei Peifan on Saturday.
Zhao will meet fellow Chinese player Lei in his next match for a place in the quarter-finals.
Trailing 7-2 overnight, Jones started the second session with a break of exactly 100.
He reduced his deficit further when Zhao missed a simple brown during what appeared to be a routine clearance that would have restored the 28-year-old's five-frame advantage.
But Zhao won the next two with breaks of 70 and 55 to move 9-4 ahead and then compiled a break of 87 after returning from the mid-session interval to defeat the 16th seed from Wales.
In the other match being played in Monday's morning session, four-time champion John Higgins shared the first four frames with qualifier Joe O'Connor.
Nine frames will be played in their first session, with their first-round match being played to a conclusion from 19:00 BST.
Later, Mark Allen will start 5-4 up against Fan Zhengyi (14:30 BST), while 2016 runner-up Ding Junhui and two former semi-finalists - David Gilbert and Si Jiahui - will make their first appearances at the Crucible this year.
Schedule: Monday, 21 April
10:00
John Higgins (3) v Joe O'Connor
Jak Jones (16) 4-10 Zhao Xintong
14:30
Ding Junhui (10) v Zak Surety
Mark Allen (8) 5-4 Fan Zhengyi
19:00
Si Jiahui (13) v David Gilbert
John Higgins (3) v Joe O'Connor