Kelley is dealing with neck spasms that could be affecting his velocity, Jorge Castillo of The Washington Post reports.

EDGE Analysis

Kelley served up another longball Friday evening, leading manager Dusty Baker to investigate the matter a bit further. It turns out there is an injury causing some of the problems the reliever has had, although it's unclear if he'll require a DL stint because of it. More details should come forth as he's examined further, but this could mean that Kelley could be unavailable for the next few days.