Mark Hamburger joins the Bees for his 12th season of professional baseball after being acquired in a trade with St. Paul of the American Association. Over the last two years with the St. Paul Saints, the former big leaguer made 44 appearances (42 starts), posting a 25-12 record with a 3.43 ERA and 215 strikeouts over the course of 330.2 innings pitched.

Hamburger was originally signed as an undrafted free agent by the Minnesota Twins in 2007, and spent one year with the Twins organization before being traded to the Texas Rangers in 2008 for Eddie Guardado. After three successful campaigns in the Rangers organization, he made his Major League debut in 2011, appearing in five games and collecting one victory with a 4.50 ERA. After stints with the Padres and Astros organizations, along with St. Paul, the righthander would rejoin the Twins organization in 2014 and made his New Britain Stadium debut by appearing in eight games for the Rock Cats.

The 31-year-old holds a record of 57-50 with a 3.62 ERA, 764 strikeouts, 19 complete games, and four shutouts over the course of 973.1 innings in 348 minor league appearances (83 starts).