Javy Guerra was designated for assignment by the Dodgers to make room for Chone Figgins on the roster last week and the White Sox have claimed the 28-year-old reliever off waivers.
Guerra spent most of last season at Triple-A, making just nine (bad) appearances for the Dodgers and missing time with an elbow injury, but in 2011 and 2012 he posted a combined 2.45 ERA with 75 strikeouts in 92 innings.
His control is spotty and Guerra was never a great fit as a rookie closer in Los Angeles, but if healthy he’s well-suited for a middle relief gig and can help the White Sox.
Pirates right-hander Joe Musgrove is done for the year after suffering an abdominal wall muscle strain and stress reaction in his pelvic bone. While he isn’t expected to undergo surgery or miss additional time in 2019, he’s been prescribed six weeks of rest before resuming any baseball-related activities.
Musgrove, 25, finished out his third year in Pittsburgh with a 6-9 record in 19 starts, backed by a 4.06 ERA, 1.8 BB/9, and 7.8 SO/9. Despite logging a career-high 115 1/3 innings at the major league level, he’s also been dogged by a string of injuries, from the shoulder strain that robbed him of eight weeks at the start of the season to an index finger infection that kept him sidelined for a minimum 10-day stay on the disabled list in June.
While he works his way back up to full strength yet again, rookie right-hander Nick Kingham is expected to cover for him and will make a spot start during the Pirates’ series finale against the Brewers on Sunday. The 26-year-old righty hasn’t started a single game for the team since August 1, and currently carries a 4.69 ERA, 2.7 BB/9, and 8.1 SO/9 over 71 innings out of the rotation and bullpen.