Williams was drafted by the Brewers and spent the first three years of his big league career there, before bouncing to the Mariners, Padres and Marlins over the past two years. Over his five seasons, he’s gotten into 97 games and thrown 98 2/3 innings. His career ERA is 5.29, along with a 23.3% strikeout rate and 10.9% walk rate.
Now 30 years old, Williams is out of options. If he’s able to crack the Giants’ roster, he’ll have to stay there, or else be designated for assignment. However, with just over three years of MLB service time, if he can earn and hang onto a roster spot, he can be retained by the club via arbitration.