Kieboom (shoulder) is playing catch Sunday but has yet to throw across the diamond since suffering a setback two weeks ago, Jesse Dougherty of The Washington Post reports.

Cavalli has been diagnosed with a Grade 3 sprain of his right ulnar collateral ligament and will require Tommy John surgery, Mark Zuckerman of MASNSports.com reports.

Doolittle (elbow) still hasn't seen Grapefruit League action this spring and won't be ready for Opening Day, but he could be the Nationals' top left-handed option in the bullpen when healthy, Jesse Dougherty of The Washington Post reports.

Pineda (finger) has yet to be cleared to throw, Andrew Golden of The Washington Post reports.

The Nationals reassigned Tetreault (shoulder) to minor-league camp Tuesday, Jessica Camerato of MLB.com reports.

The Nationals reassigned Hill (hamstring) on Tuesday, Jessica Camerato of MLB.com reports.

Henry (shoulder) is facing live hitters Tuesday in Nationals camp, Barry Svrluga of the Washington Post reports.