Steven Van Zandt – best known for his work in the E Street Band – has canceled a significant number of tour dates with his Disciples of Soul band due to illness.

According to a press release, the guitarist is suffering from sinusitis, which is a form of sinus infection.

“I’ve never canceled shows before. I feel terrible about this, but my doctors are telling me there’s just no way to continue right now,” the musician said. “We were really looking forward to continuing this 90-show tour around the world. We want to thank the fans for all of their support. I really hope we can make up these dates someday somehow.”

The only confirmed dates left on Van Zandt’s calendar are single shows in New York City and Medford, Mass., scheduled for Nov. 2 and 6 respectively.

To stay up to date on the musician visit his official website.

Read Relix‘s recent interview with Van Zandt here.