After taking a year away from the game to recover from various injuries, Campbell returned to the fairways this week at the Abu Dhabi HSBC Golf Championship on the European Tour but withdrew after nine holes of the opening round yesterday.
The former US Open champion was six over through nine when he retired and it remains to be seen what this means for his career.
At 45, Campbell is still a few years away from being able to join the 50-and-over seniors tour, where players still earn a good living. He has a lifetime exemption on the European Tour courtesy of his eight wins on the circuit between 1999 and 2005.
Things have unravelled for Campbell during the past two years and his world ranking has plummeted to 1434. He also skipped last year's US Open after he split with his wife, Julie.
Campbell, who is based in Spain, told Sports Illustrated in an interview last year that he wanted to keep playing competitive golf.