O'Sullivan sees off Campbell threat
Ronnie O'Sullivan raced through to the second round of the World Championship but suggested he was concerned about a lack of sharpness.
O'Sullivan is aiming to become the oldest world title winner since Ray Reardon secured his sixth success in 1978 at the age of 45, but the 37-year-old hinted a lack of table-time was a concern.
"I was not sure how the match was going to go and not sure how I was going to compete, it was an experiment in some sorts of ways," said O'Sullivan.
"In general I wasn't as slick or as tight as usual. But you've got to expect that if you've not played for a year, you can only get that through matches...it's like trying to get fit for a marathon the day before a marathon starts."
The four-time winner beat Marcus Campbell 10-4 at the Crucible in his first competitive match since ending a 12-month sabbatical and will now take on fellow Essex player Ali Carter, who he beat 18-11 in last year's final, or tournament debutant Ben Woollaston.