Def Leppard’s Vivian Campbell “My Cancer has Returned”.

Def Leppard guitarist Vivian Campbell will be forced to miss the opening dates of the band's summer tour after revealing that he is once again battling cancer. Campbell, who is battling Hodgkins Lymphoma for a second time, has also announced the delay in the release of his other band's album until sometime in 2016.

Campbell's announcement comes just three days before Def Leppard embark on their summer amphitheater trek with Styx and Tesla; however, the band's June 23rd tour-opening gig in Tampa, Florida went on as scheduled. Trixter guitarist Steve Brown, who previously filled in for Campbell when cancer treatments forced him to miss some Def Leppard shows, will once again serve as Campbell's temporary replacement.

Campbell was first diagnosed with Hodgkin's lymphoma in March 2013, although he didn't share his condition with fans until three months later. "I feel fortunate that my cancer sent me an alarm call in the form of 'the cough that wouldn't quit,'" Campbell said in a statement at the time.

Campbell wrote on Facebook. "I’m still working on a schedule of treatment with my doctors, but I will see you all very soon."

Join me in wishing Vivian a speedy recovery.