"george predicted 4 teams he thought would be in the final four, but also figured that ohio state would be the darkhorse of the 2010 brackets if there was one
something/someone you wouldn't expect to win but they could
""george predicted 4 teams he thought would be in the final four, but also figured that ohio state would be the darkhorse of the 2010 brackets if there was one" What is the definition of "darkhorse"?