Maybe you remember it. Last April, Garcia threw a split-fingered fastball that behaved nothing like any split-fingered fastball we'd ever seen before. Or, presumably, that Garcia had ever thrown before. And probably never threw again.
But I'm not surprised to see the knuckleball enter the discussion. As I discuss in this book, the forkball -- which has disappeared in favor of the splitter -- was often described as behaving very much like a knuckleball. I think Garcia accidentally threw an old-fashioned forker.