Back in 2010, before Gary Sanchez had even cracked prospect lists for the first time, I nicknamed the Yankees' then-17-year-old catcher "Gary the Unicorn;" as I put it then, "He's so wonderfully magical that I don't actually believe he exists, nor that I'll ever set eyes upon him." Coming off a stellar season in the Gulf Coast League, Sanchez—that rarity among prospects, a two-way catcher who could contribute both on offense and defense—seemed unlikely ever to roam the Bronx. Either he'd be switched off the position due to defensive shortcomings, traded elsewhere in a blockbuster for a more established player or fizzle into oblivion, as so many teenage prospects do.