DC United coach Wayne Rooney is interested in former Manchester United teammate Jesse Lingard.
Lingard is a free agent after a season with Nottingham Forest. DC United have placed the midfielder on their Discovery List.
Each MLS club in the league can name up to seven players on their Discovery List, which is for players scouted but are exempt from being drafted or assigned.
Should another club sign Lingard, DC United will be due a fee.
If Lingard moves to the US, DC United would have first option.