Baltimore Orioles closer Alfredo Simon doesn't expect strained hamstring to keep him out long - baltimoresun.com:
"The best in-house option likely would be left-hander Will Ohman, who hasn't allowed a run in 24 games spanning 14 2/3 innings. Simon, who will be treated in Baltimore on Monday and re-evaluated Tuesday, said this isn't the first time in his career that he has had a hamstring injury."
Uehara would have been obvious. Wil Ohman?
In this case, the mad rush to pick-up orioles' relivers isn't going to be won be the team that gets there first.