D.C. United’s Perry Kitchen is still feeling the effects of his trip to Guatemala, and not just because the U.S. under-20 national team fell short of expectations.

Kitchen, the rookie center back who returned to Washington late last week, might miss his second consecutive MLS match because of intestinal illness. He was a late scratch last weekend against the Los Angeles Galaxy, returned to training Tuesday but continued to experience stomach problems. He underwent testing Wednesday and sat on the sideline during Thursday’s session.

“He has lost a little bit of weight,” assistant coach Chad Ashton said. “He tried to get out there for a day, and it’s just better to keep him out right now and try to get him to hold down some food and get his strength back.”

Ashton didn’t rule out Kitchen from Saturday’s match at Toronto FC, but if he isn’t able to play, rookie Ethan White is the likely partner for Dejan Jakovic. White showed well in two matches last week.

“I’d say it’s 50-50,” Ashton said. “Either one of them could start. Perry is still in the mix, but it definitely could be Ethan.”