The pair have duelled on eight previous occasions including the 2020 World Championship finals, and O'Sullivan has emerged victorious on six occasions.
In the other quarter-final showdown today, Anthony McGill will hope to continue his rise to prominence when he faces Belgian No.40 seed Luca Brecel.
With a day of snooker to look forward to, make sure to keep updated with our full schedule of upcoming session times.
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UK Snooker Championship 2021 schedule
All UK time.
Quarter-finals
Friday 3rd December
Afternoon session
From 1pm on Eurosport 2 / discovery+ / BBC Two / BBC iPlayer
Anthony McGill v Luca Brecel
Ronnie O'Sullivan v Kyren Wilson
Evening session
From 7pm on Eurosport 2 / discovery+ / BBC Two / BBC iPlayer
Barry Hawkins v Andy Hicks
Jack Lisowski v Zhao Xintong
Saturday 4th December
Semi-finals
Afternoon session
From 1pm on Eurosport 2 / discovery+ / BBC Two / BBC iPlayer
Anthony McGill / Luca Brecel v Ronnie O'Sullivan v Kyren Wilson
Evening session
From 7pm on Eurosport 2 / discovery+ / BBC Two / BBC iPlayer
Barry Hawkins / Andy Hicks v Jack Lisowski / Zhao Xintong
Sunday 5th December
Final
Afternoon session
From 1pm on Eurosport 2 / discovery+ / BBC Two / BBC iPlayer
McGill/Brecel/O'Sullivan/Wilson v Hawkins/Hicks/Lisowski/Xintong
Evening session
From 7pm on Eurosport 2 / discovery+ / BBC Two / BBC iPlayer
McGill/Brecel/O'Sullivan/Wilson v Hawkins/Hicks/Lisowski/Xintong
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