Seppi posted a career-high 11 saves against George Washington.
Niven Hegeman's injury has forced coach Ray Leone to adjust his lineup.
The Terps struck early in the second half but couldn't hold on late.
The Terps outshot the Patriots 19-1.
Moore shifted from the defense to midfield.
The Terps have been outscored 9-0 in their past two games.
The Terps conceded two penalty kicks in the rout.
Coach Ray Leone said a replacement will be decided upon in Georgia.
The Terps had 44 shots in their first two games, but converted three of them.
Midfielder Hope Lewandoski scored the golden goal.