Nationals loses pitcher for some time

Scott olson pitcher for the Washington Nationals has had a surgery on his shoulder after a lebrum tear. His pitching arm was so tight that he was scratched from two starts in the Nationals games. The surgery was successful but he won't be back for 2 to 6 weeks while he has a throwing program to restrengthen his arm. He should be bach as soon as he is done. The information has been found on ESPN.com-MLB