ESPN anchor Stuart Scott has announced he's fighting cancer.  He was diagnosed in 2007, but successfully completed treatment. 

He tweeted, "Blessed by prayers..I'm back in the Fight. C reared its head again. Chemo evry 2 wks but I'll still work, still work out..still #LIVESTRONG"

Responding to tweets of sorrow, "Thanks for prayers..ill fight w ALL C survivors & loved ones. Cancer wants to re-appear..picked the right guy cuz I HIT HARD all day long!!"

He tweeted to his fans what he does after chemo appointments: "Here's what I do right aftr chemo. Leave the infusion center & go STRAIGHT 2 either do a p90x wkout or train MMA..THATS how you #LIVESTRONG"

Back in '07, he had an emergency appendectomy which revealed the presence of appendiceal cancer.  After six months of chemo, he was cancer-free until early 2011.  At that time, doctors discovered that malignant tumors had developed on his small intestine. More surgery and chemotherapy treated the cancer, but it has apparently returned again.

Best wishes to Scott in his fight.