Koji Uehara threw off flat ground again today, but he couldn't complete his running progression and had to cut short his workout.
A team physician is going to examine Uehara, who's dealing with a sore left hamstring. The Orioles don't have any futher updates.
Manager Dave Trembley is hoping to know more about Uehara's condition tomorrow.
Also, Trembley said he might announce his starting rotation on Monday, adding that it won't include any surprises.