The club, which has yet to confirm the decision, went 2-0 in its arbitration cases this week. The team won its case against Brian Bruney on Wednesday. Bruney will make $1.5 million in his first season with Washington instead of the $1.85 million he was seeking.
Burnett said Thursday night he was not upset about the arbitration process but wished he had come to an agreement with the team. He declined to say what the Nationals said about him during the hearing.
"It was interesting," Burnett said by phone. "I learned a lesson. I don't want to deal with it again."
Last season, Burnett went a combined 2-3 with a 3.12 ERA for the Pirates and Nats. He was part of the Nyjer Morgan trade that sent right-hander Joel Hanrahan and center fielder Lastings Milledge to Pittsburgh on June 30, 2009.
Bill Ladson is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.