Burundi international defender David Habarugira has joined D.C. United. The 20-year-old was handed the contract after impressing on trials with the club.

"David is a versatile defender with a big upside," said D.C. United general manager Dave Kasper.

"He has been in a structured environment for the last several years and has all the tools to be a successful player."

DC United also have signed defender Julius James from Houston Dynamo for a third-round pick in the 2012 draft.

James has played in eight games with five starts this season for the Dynamo. He is also a member of Trinidad and Tobago's national team.