Dabo Swinney was taped sprinkling grass onto the field at the Superdome before Clemson's College Football Playoff game in the Sugar Bowl against Alabama.
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ESPN's Holly Rowe said she asked the Clemson coach about the grass.
Rowe said Swinney told her he calls it his "secret mojo" and wanted to keep all other information about the grass private.
The secret is out, however; the grass is from Clemson's home field at Memorial Stadium, aka Death Valley.
Dabo Swinney taking part in his pregame tradition for away games: Sprinkling grass from Death Valley from goal line to goal line. pic.twitter.com/Ttal1j0XNB
— Zach Lentz (@ZachLentzTandD) January 1, 2018