Watch: Dayton's Kendall Pollard has monster block on dunk attempt
Pollard blocked Dunn twice in the sequence to preserve a 21-18 Flyers lead.
Dayton took a 28-25 lead over the Friars into halftime. Pollard had four points, two blocks and one rebound in the first half.
The Flyers advanced to the Round of 64 after winning their First Four game against Boise State on Wednesday.
- Molly Geary