Tied at 14 at halftime, the Hawks (3-1, 2-0) scored on a 37-yard field goal by Eric Spillane and a 4-yard pass from Frazier to Roberts in the third quarter while holding the Pioneers (0-3, 0-1) to 7 yards total offense.
Monmouth added a 32-yard field goal with 10:03 remaining. Sacred Heart then drove to the Hawks 23, but Tim Little was intercepted by Pat Gray. After a Monmouth possession lasting nearly 7 minutes, the Pioneers blocked Spillane's 30-yard attempt with 1:26 left.
Sacred Heart got to the Hawks 22 before running out of downs.
A bizarre play ended the first half. Little was intercepted at the goal line by Gray, who fumbled. Tyler Dube recovered for a Pioneers touchdown, tying it as time expired.
USC athletic director Pat Haden spoke Tuesday about the decision to fire head coach Steve Sarkisian, calling it "very difficult," while also defending his handling of the situation.
Steve Sarkisian has been plagued of late by apparent substance-related circumstances, including arriving to team facilities appearing intoxicated Sunday, according to sources.
Steve Spurrier, the visor-slinging, slick-talking "Head Ball Coach" who is the second-winningest coach in Southeastern Conference history, announced his resignation on Tuesday.
Florida Gators quarterback Will Grier has been suspended for the year after testing positive for a performance-enhancing substance found in a supplement, coach Jim McElwain announced Monday.
Tennessee defensive tackle Shy Tuttle will miss the rest of the season with a broken fibula and torn ankle ligament.
Former NFL safety Tyler Sash died from an accidental overdose after mixing two powerful pain medications, and a history of injuries was a contributing factor, a medical examiner said.