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A year ago, in looking ahead toward the NCAA tournament, SI.com presented its first edition of the Darkhorse Dozen, a list of 12 less-heralded players who could prove pivotal in March. After all, it can be easy to highlight a crop of obvious star players as the ones who will steer the postseason’s course. But, as we wrote then, March legends often end up in position to be enshrined in tourney lore because supporting players contributed beyond their usual role to help put their team over the top.