The world champion O’Sullivan will next face Matthew Stevens in the last 32 on Thursday afternoon, but revealed improving his technique is uppermost in his thoughts as he chases a first ranking event victory of the campaign on Sunday.
O’Sullivan claimed the title in 2017 with a 9-2 drubbing of Kyren Wilson.
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“I played ok, I missed a few balls. It’s weird with no crowds, certain players need an atmosphere to get up for it,” said the world number two.
“When you play a good shot you excite yourself and you don’t need the crowd to get you going. But when you are struggling you need a crowd to force you to find something. We’ve got to get used to it.
“I’m still looking for a cue action, I think as snooker players that all we really do. We’re always trying to find a way to do try to hit solid shots and play in an efficient mode.”
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