Diamondbacks' Kendall Graveman: Throws live BP

Graveman (hip) threw a live batting practice session Friday, MLB.com reports.

Graveman's session was overshadowed by the hitter he threw to -- rehabbing outfielder Corbin Carroll (wrist) -- but the reliever's activity carries significance. Arizona's bullpen ranks 28th in the majors with a 5.18 ERA, and the team's relief corps has had recent meltdowns in the latter innings of losses. Graveman battled a back injury and missed the first six weeks of the season before a right hip impingement shut him down early in June.