The Daily Mail reports the 62-year-old guitarist's lifestyle issues mean the band can't get insurance for the tour, and so much money is at stake it would be impossible to plan the trek without a backup policy.
In the past the band relied on Wood's wife Jo to keep him in line - but they divorced earlier this year after he was revealed to be having an affair with 21-year-old Ekaterina Ivanova. - more on this story
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