Darren Mattocks will not return to D.C.

[USAF]

United next season. His contract expires next month (December), and the GM said he doesn't plan to offer him a new contract.......The 2018 season was his most productive.
Dane Kelly is also out, at DCU. His contract option wasn't picked up.
Oneil Fisher's contract, with DC United, also expires next month, but it's felt that they will offer him a new contract.