UNO reliever John Barr got the first two outs needed when he entered with the bases loaded and nobody out in the eighth inning Tuesday.
But one walk and a grand slam later, visiting Tulane held an eighth-inning lead in the first of three games between the teams this season.
"That right there will knock you out," UNO coach Blake Dean said about the lead-changing grand slam hit by Tulane's Grant Witherspoon at UNO's Maestri Field.
The comeback UNO completed over the next three half-innings for an 8-7 victory against its crosstown rival highlighted for Dean how much his team has grown through the first weeks of the season.