Bolsinger was designated for assignment by Arizona on Thursday. Bolsinger, who turns 27 in January, was 1-6 with a 5.50 ERA in 10 games, including nine starts in 2014 for the Diamondbacks in his rookie season, with 48 strikeouts, 17 walks and seven home runs allowed in 52⅓ innings.
The right-hander was 8-3 with a 3.93 ERA in 17 games, including 16 starts for Triple-A Reno in 2014, with 88 strikeouts, 32 walks and six home runs allowed in 91⅔ innings. He was drafted by Arizona in the 15th round in 2010, when current Dodgers senior vice president was general manager of the Diamondbacks.
Bolsinger will provide the kind of major-league-ready spot starter needed at times throughout the season. It was the absence of a Bolsinger type in 2014 that led the Dodgers giving up two minor leaguers for proven, yet mediocre Roberto Hernandez.
Bolsinger has 149 days of major league service time, and two option years remaining.
To make room on the 40-man roster for Bolsinger, the Dodgers designated left-handed relief pitcher Jarret Martin for assignment. The 6'3, 230-pound Martin has a strong arm and was added to the 40-man roster last November, but struggled mightily with control in 2014, walking 48 batters in 54⅔ innings with Double-A Chattanooga.
The Dodgers have 10 days to figure out what to do with Martin. They can try to trade him, or if he clears waivers can outright him to the minors. But, off the 40-man roster, the 25-year-old would be eligible to be taken in the Rule 5 draft on Dec. 11.