The Terps went winless in conference play for the first time since joining the Big Ten and look set to end their 22-year streak of consecutive NCAA tournaments.
The Terps conceded twice in the second half and squandered an opportunity for their first Big Ten win of the season.
The Terps have earned just one point from a possible nine in their first three conference games.
Micah Seger's giveaway helped the Nittany Lions score the game-winner.
The Terps started their defense of the regular season Big Ten championship with one point instead of three.
The No. 20 Terps missed a penalty kick after conceding one of their own as they dropped their first game against the Cavaliers since 2019.
Kimani Stewart-Baynes notched his first collegiate goal and assist as the Terps recorded their first win of 2023.
The Terps crashed out of the NCAA tournament once again.
Costabile only committed to the Terps this past summer and was a unanimous Big Ten all-freshman team selection.