The Athletics have acquired Chris Resop from the Pirates in exchange for Zach Thornton, the team announced.
Resop, 30, pitched to a 3.91 ERA with 5.6 K/9 and 2.9 BB/9 in 73 2/3 innings for Pittsburgh this year. He is arbitration-eligible for the second time and is projected to earn $1.3MM next season. Thornton, 24, posted a 4.53 ERA in 53 2/3 innings for Oakland's High Class-A affiliate in 2012.