Braves batter Andrelton Simmons hit a fly ball into left field, but hung there long enough to give three men time to converge on it--Cardinals left-fielder Matt Holiday, their shortstop Pete Kozma (who'd just made an error throwing to first), and the man who turned out to be more important to both Cardinals players, and every player, team, and rule, as it turned out--left-field umpire Sam Holbrook.
Kozma had made an exceptional effort look fluid and easy by running more than mid-way into deep left field quickly, reaching the ball's target area with 2 or 3 seconds to spare, so it was apparent that Matt Holiday was preparing to let the SS redeem himself from his earlier error (a bad throw to first) by letting him take the ball.
Then--literally at the last second, with the fly ball just 30 feet over Kozma's head--ump Holbrook decided to call the fly ball an out by invoking the infield fly ball rule.
I saw the play live, and it was not just 'protestable'...it was detestable--a poorly-made, mistaken, blown, call, from the split second the ump's hand haplessly went up to make it.
Sadly, it ruined the outcome of this game, the historic first MLB wildcard game, forever.
It was monumentally bad, and I'm very sure the actual umpire's poor call--so wildly inappropriately MADE and TIMED--was the full cause for the SS letting the ball drop in the first place, leading Kozma--who obviously knew he'd never expect any ump to be hollering out the infield fly rule--to mistake umpire Holbrook's voice for his own teammate Holiday's, calling him off to make the catch himself, as it was well within his range and the common territory of any major league left fielder.
The rule applies only when there are fewer than two outs, and there is a force play at third base (i.e., when there are runners at first and second base, or the bases are loaded). In these situations, if a fair fly ball is in play, and in the umpire's judgment it is catchable by an infielder with ordinary effort, the umpire shall call "infield fly" (or more often, "infield fly, batter's out"); the batter will be outregardless of whether the ball is actually caught in flight. Umpires typically raise the right arm straight up, index finger pointing up, to signal the rule is in effect.