Paul Bin, William James Herve and Brayan Padilla were sidelined for much of 2019.
The team is coming off its best campaign since 2012.
"It’s a great example of what a team could and should look like.”
The Terps circulated a picture on social media kneeling in solidarity against police brutality and racism last week.
The son of Kenyan immigrants, Ngobu played for various club teams in Maryland before coming to College Park.
The German started 18 games, and was an all-Big Ten second team selection in 2019.
Players are using toolboxes and empty fields to stay in shape instead of state-of-the-art equipment.
The Terps added two midfielders and a goalkeeper.
A 3-0 loss to Wake Forest in the NCAA tournament ended the Terps' rocky campaign.