La Salle looked like the Explorers of last March during Sunday's 71-63 win at St. Joseph's.
"I think it was our best game," La Salle coach John Giannini said.
The Explorers hope that momentum carries into the Atlantic Ten tournament.
Unlike last year, when La Salle lost its lone Atlantic Ten tournament game to Butler but still received a bid to the NCAA tournament, this season's team has no margin for error.
La Salle (15-15) likely has to run the table, winning four games in four days to return to the NCAAs after last year's Sweet 16 run.
The A-10 tournament will begin Thursday at the Barclays Center in Brooklyn, and No. 8-seeded La Salle will plays a familiar foe in the noon opener, No. 9 St. Bonaventure.