Doobie Brothers, the next band to postpone shows

As of Sept. 1st the Doobie Brothers have postponed 4 dates because of an unspecified illness having to do with Michael McDonald. The band announced on their Twitter page that shows in Detroit, Burgettstown, Toledo and Cincinnati will not go on as scheduled. https://ultimateclassicrock.com/michael-mcdonald-recuperating-isolating-doobie-brothers/