"Duke avoided arbitration by agreeing to a one-year, $4.3 million contract.

This is the second of Duke's three years of arbitration eligibility. Duke, 26, made $2.2 million last season, when he went 11-16 with a 4.06 ERA and earned his first All-Star berth. In five seasons with the Pirates, Duke is 37-55 with a 4.30 ERA.

According to general manager Neal Huntington, the Pirates did not consider offering Duke a long-term deal.

"As we worked through the process, it became clear it's in our best interest to stay with a one-year contract," Huntington said. "The trouble with multi-year contracts this late in the (arbitration eligibility) process is they become more like a free-agent contract."

Jones, 26, was claimed off waivers from the Atlanta Braves. The Pirates were able to add him to their 40-man roster because their signing of free-agent outfielder Ryan Church had not yet officially gone through MLB's confirmation process.

"It's strictly paperwork," Huntington said."