D.C. United midfielder and United States international Paul Arriola left Saturday night’s preseason exhibition at Orlando during the first half with a right knee injury.
Arriola, a 25-year-old midfielder, will have a scan to determine the extent of the injury, team spokesman Sam Legg said.
Team manager Gregg Olsen told the Washington Post that the injury ”doesn’t look good.”
The club saw the departure of Wayne Rooney this offseason but was expected to have a formidable attack with Arriola and the additions of Edison Flores, Julian Gressel and Yamil Asad.
Flores and Asad are also nursing injuries, so the potential long-term loss of Arriola could put the four-time MLS champions at an early disadvantage with the regular season starting on Feb. 29 against the Colorado Rapids.
Arriola, who joined D.C. from Liga MX club Tijuana in 2017, has also been a regular starter for the U.S. national team under coach Gregg Berhalter. Arriola has five goals in 33 international appearances.
The Associated Press contributed to this report.