NEW YORK (TheWrap.com) – ESPN anchor Stuart Scott tweeted that his cancer has returned, but that he’s fighting hard. How hard? He went from tweeting Monday night about his health to hosting SportsCenter, as if nothing were wrong. As he hosted, he was inundated with supportive tweets. “Blessed by prayers… I’m back in the Fight,” Scott wrote. “C reared its head again. Chemo evry 2 wks but I’ll still work, still work out..still #LIVESTRONG” In another tweet, he said that after chemotherapy treatments he goes straight to work out, doing either P90X or mixed martial arts. …