Originally signed by Baltimore as a non-drafted free agent on 2/23/98, Salas was claimed off waivers by the Brewers on 2/1/07. In 317 career minor league relief appearances, he has posted a 3.59 ERA and 82 saves.
Roberts spent the entire 2007 campaign with Brevard County, Milwaukee's affiliate in the Florida State League. In 45 relief appearances, the 23-year-old righthander went 6-3 with four saves and a 3.44 ERA. Roberts, who pitched three seasons at the University of Houston, was selected by the Brewers in the fifth round of the 2005 First-Year Player Draft. In his three minor league seasons, he has posted 12 saves and a 4.07 ERA in 101 appearances (19 starts).
"With this trade we have acquired two young relief pitchers who provide us with quality depth, options and multiple years of control," said Pirates GM Neal Huntington. "They have each had success during their respective minor league careers and we welcome them to our organization."
Torres, 35, went 2-4 with a 5.47 ERA in 56 relief appearances with the Pirates in 2007; he also picked up 12 saves in 18 opportunities. Torres spent each of the last six seasons with the Pirates and finished his Pittsburgh career with 358 appearances – good for tenth place on the club's all-time list.
"Salomon Torres had a solid career with the Pirates and we wish him well in the future," added Huntington.