White, who will again feature on Eurosport's coverage of the World Snooker Championship final as O'Sullivan takes on Kyren Wilson at the Crucible, knows that his friend will cherish this opportunity on the biggest stage.
O'Sullivan, who has five world titles to his name already, can draw level with his hero Steve Davis with a sixth triumph in Sheffield - something which White says would mean a great deal to the 44-year-old.
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"Ronnie O'Sullivan going for his sixth world title - I know it would mean the world to him," White told Eurosport ahead of the showpiece match.
"He puts in thousands of hours of work, and it all comes down to this sort of match.
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"He has got a very tough opponent in Kyren Wilson, but if he wins his sixth world title he has got a chance to catch Stephen Hendry's record of seven. At Ronnie's age, I still think he's got every chance of catching Hendry.
Growing up, Ronnie's idol was Steve Davis because he won six world titles. He would love to equal his hero's record.
"As for Kyren Wilson in his first world final, he believes he can be the champion," White continued.
"He has only got four sessions to do that and it might not be this weekend against the great O'Sullivan, but I'm sure one day he will be world champion."
The Break: Episode 10 - Still Too Close To Call
Ronnie O'Sullivan may have a three frame lead over Kyren Wilson going into the last day of the World Snooker Championship final, but as ex player Neal Foulds and commentator Philip Studd discuss with Rachel Casey, this is a very unpredictable year and an extraordinary Championship; anything could happen.
The trio have a comprehensive review of the first two sessions of the final and look ahead to the next two.
Plus Rachel has a lively conversation with Eurosport Presenter Colin Murray on his three week experience at the Crucible being in the company of Jimmy White and all the top competitors.