After six appearances and an ERA of 1.60 , Williamson went on the disabled list with tightness in his right triceps tendon .
In late November 2006 the Baltimore Orioles signed Williamson to a one - year contract .
After six appearances and an ERA of 1.60 , Williamson went on the disabled list with tightness in Williamson 's right triceps tendon .
In late November 2006 the Baltimore Orioles signed Williamson to a one - year contract .