Ali Carter has pulled out of his Welsh Open quarter-final clash with Ronnie O'Sullivan on Friday afternoon due to illness, World Snooker Tour have announced.
The organisers tweeted: "We wish Ali Carter well. He has withdrawn from the Welsh Open due to illness. Not Covid-19 related.
"Ronnie O'Sullivan will receive a bye to the semi finals."
Welsh Open
'I'm not a numpty' - Welsh Open champion Brown on proving O'Sullivan wrong
24/02/2021 AT 10:47
Carter is a player O'Sullivan has had confrontations with earlier in his career and the Rocket was expecting a tough match.
O'Sullivan will play the winner of Mark Williams v Tom Ford in the semi-finals. They face off on Friday evening at 7pm UK time.

HOW TO WATCH THE EVENT

The 2021 Welsh Open is live on Eurosport.
You can watch every moment on eurosport.co.uk and the Eurosport app. You can download the Eurosport app for iOS and Android now.
Welsh Open
A Ferrari from Antrim, O'Sullivan magic and plenty of shocks - the story of the Welsh Open
22/02/2021 AT 08:59
Welsh Open
'I have had some dark days' - Brown on his journey to beating O'Sullivan
21/02/2021 AT 22:44