The Oakland Athletics activated right-hander Kiko Calero from the 15-day disabled list Friday and optioned lefty Dallas Braden to Triple-A Sacramento.
Calero had been sidelined since June 17 because of inflammation in his right shoulder. He is 1-4 with a 6.39 ERA in 31 relief appearances with the A’s this year.
Braden made three relief appearances since being recalled from Sacramento on June 25, allowing two runs in four innings. He is 1-3 with a 6.08 ERA in seven games overall with the A’s this season.