Left-handed pitcher Sean Burnett cleared waivers and was sent outright Thursday to the Pirates' Triple-A Indianapolis farm club.

Japanese pitcher Katsuhiko Maekawa agreed to terms with the Nationals on a minor league deal Tuesday and will be invited to spring training, according to the Associated Press. The 29-year-old Maekawa most recently pitched for Orix of the Pacific League in 2006, going 1-7 with a 5.26 ERA. The Nationals also announced that right-hander Enrique Gonzalez was claimed off waivers by the Padres.

Yahoo.com is reporting that the Pirates claimed infielder Ray Olmedo off waivers from the Blue Jays on Friday. Olmedo spent most of the season in the minors with the Blue Jays before his promotion on August 3. He hit .216 with no homers and one RBI in 27 games.