AceShowbiz - Roger Daltrey is to have an operation to scrape his throat to check and remove pre-cancerous cells from his vocal cords.
The Who legend, 75, first noticed a problem with his voice in 2009 and was diagnosed with dysplasia - abnormal, precancerous cells in his throat.
He now tells British newspaper The Sun he is having an operation on Friday, November 22 to ensure his voice is OK for a 2020 tour.
"I can't do much talking - I'm off for a voice op on Friday," he explains.
The Who previously had to postpone several U.S. concerts in September after losing his voice.
Roger's doctor Rajiv Pandit says the operation, and regular checks and work, including laser treatment, helps stop the star getting cancer, as well as enabling him to perform.
"In Roger's case, his dysplasia left untreated would have not only ruined his singing career but could have turned into cancer," he explains.
The Who's U.K. tour gets under way in Manchester in March 2020.