The Black Bears led 10-7 at halftime to set up the decisive third quarter. Mancuso's 1-yard TD plunge capped a 7-play, 79-yard drive with 6:22 left in the third.
As the quarter drew to a close, Maine regained the lead when Joe Fagnano threw an 87-yard TD pass to Andre Miller. Richmond (3-3, 1-1 Colonial Athletic Association) pinned Maine at its own 1-yard line after a 68-yard punt by Jake Larson. Maine's four-play, 99-yard drive took a little more than two minutes.
Following a short kickoff that Aaron Dykes returned 15 yards to Richmond's 34-yard line, Mancuso connected with Fuller for a 21-17 advantage with 30 seconds left in the third.
Fuller finished 127 yards on three receptions.
Miller tallied 115 yards in receiving yards with four receptions for Maine (2-4, 0-3).
Allison, Rourke lead Ohio to 66-24 win over Bowling Green
O’Shaan Allison had touchdown runs of 54, 7 and 53 yards, Nathan Rourke accounted for four TDs, and Ohio beat Bowling Green 66-24 on Tuesday night.
Eastern Michigan WR makes remarkable one-handed TD grab
Arthur Jackson III reels in his second touchdown of the day in style, making an acrobatic one-handed grab at the pylon for a 22-yard score.
Eastern Michigan beats NIU 45-17 to gain bowl eligibility
Mike Glass threw for three touchdowns and ran for another and Eastern Michigan rolled past Northern Illinois 45-17 on Tuesday night.
Hooks comes up with OBJ-like catch
Ohio's Shane Hooks hauls in the catch with just one hand in the middle of the third quarter.
Mac Jones needs more reps to see the field better
The SEC Now team breaks down where Mac Jones can improve ahead of Alabama's matchup with Auburn.
Rodgers gets fired up discussing Mizzou's offense
SEC Now analyst Jordan Rodgers gets amped for Missouri's offense to start scoring points.