Jayson Werth continued his rehab assignment in Class AAA Syracuse last night by playing five innings in center field and going 0 for 3 with two strikeouts. Werth has played in three games since Saturday, and he could serve as Syracuse's designated hitter today. "Progress is coming along good," Manager Davey Johnson said. "He didn't feel any weakness in his left wrist." The Nationals do not have any specific timetable for Werth, and Werth himself expected an unpredictable rehab. But the steady progress has made Johnson confident Werth could join the Nationals when they end their road trip and return to Nationals Park next Tuesday against the Phillies, Werth's former team. "I imagine he's going to be getting close by the time we get back to D.C.," Johnson said. "I'd be surprised if he wasn't there waiting on us."