Campbell had to birdie the final hole in order to break 90.
The 34-year-old Kiwi injured his shoulder two weeks ago while carrying luggage down a flight of stairs. He aggravated it last week at Bay Hill, where he started with a 10 on his first hole and later withdrew.
He said he felt comfortable on the range Thursday morning, but began to feel a twinge immediately on the course. He said he is having trouble getting through the ball on his downswing.
Today was a prime example, he stated.
Campbell made eight bogeys and five double bogeys. He did end his round, however, with a birdie when he stuck an 8-iron to six feet at the par-4 18th.
Strong finish, he said with a beleaguered smile.
Campbell signed for incorrect scores on Nos. 5 and 7, which led to the disqualification. He had said that he would try and play Friday if he could get the proper treatment on his rotator cuff, before learning of the disqualification.
He considered withdrawing during the round, but he was playing in a twosome with J.L. Lewis and didnt want Lewis to have to play by himself.
A bit of etiquette, Campbell said. A lot of guys would pull out ' because I was 10-over through nine holes.
Despite the setback ' which Campbell said is adding to his mental distress as well ' he said: Its obviously very disappointing, but Ive still got another 10 years in my career. So its only one week.'
The Difference a Year Makes
Last year's third-round leader, Carl Paulson, withdrew Thursday after 10 holes due to a knee injury. He was 7-over at the time.
The withdrawal came too late for Aaron Baddeley, who needed one player to pull out prior to play in order to make the field. Baddeley is currently 18th on the money list and needed to compete this week in order to have a chance to get into The Masters.
The top 10 on the money list at the end of this week will qualify for the season's first major.