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What was Dark Roots of Earth by the band Testament?
On July 14, 2011, it was announced that the eleventh studio album by the band Testament would be called Dark Roots of Earth, which was released on July 27, 2012.
Are there any other interesting aspects about the article about the band Testament besides when the album Dark Roots of Earth was released?
The band Testament began recording their tenth studio album on June 20, 2011. Paul Bostaph was unable to take part in the recording due to a serious injury.

Question: What was his injury?
Self-contained rewrite: What was Paul Bostaph's injury relative to the band Testament?