Adon (biceps) was transferred to the 60-day injured list Friday.

The Nationals placed Adon on the 15-day injured list Wednesday with a right biceps strain, Andrew Golden of The Washington Post reports.

The Nationals recalled Adon on Saturday.

The Nationals optioned Adon to Triple-A Rochester on Friday.

The Nationals recalled Adon from Triple-A Rochester on Monday.

Adon was optioned to Triple-A Rochester by the Nationals on Wednesday, Andrew Golden of The Washington Post reports.

Adon (0-0) didn't factor into the decision Tuesday, allowing one run on three hits and three walks over 4.0 innings against San Francisco. He struck out two.

Adon was recalled from Triple-A Rochester and will start Tuesday at San Francisco, Mark Zuckerman of MASNSports.com reports.

The Nationals optioned Adon to Triple-A Rochester on Monday.

Adon did not factor into the decision Saturday, allowing three runs on six hits and two walks over four innings in a 5-3 loss against Atlanta. He struck out five.