Xander Rice scored 14 points and had four steals for the Bison (2-0). Elvin Edmonds IV shot 5 for 9, including 2 for 3 from beyond the arc to finish with 12 points.
Noah Thomasson scored 12 points for the Purple Eagles (0-2).
Bucknell plays Tuesday against Saint Peter's on the road, while Niagara plays Central Arkansas on Friday.
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