O'Sullivan reached his sixth final after beating Barry Hawkins 17-7 in the semi-finals. The 38-year-old has won every final he has contested at the Crucible, and he looks in good form to do it again this year.
He has breezed into the final, with his toughest test coming against Joe Perry in the second round when he won 13-11. A win for O'Sullivan would see him equal Steve Davis' and Ray Reardon's record of six world titles, one short of Stephen Hendry's record of seven.
After the win, O'Sullivan admitted that he can't switch off and is eager to feature in the final.
"I'm just buzzing to be playing and enjoying it," O'Sullivan told BBC Sport.
"To get to three finals in a row having already won two - if you'd have told me that three years ago it would've never entered my thoughts I could do it. I've still got one more match to play so I can't afford to get all excited.
"It's all about the final for me on Sunday and Monday now. I just want to enjoy my day off and get ready to play in what is our biggest tournament, competing in the final."