Brantley's progress has slowed as he attempts to return from a knee injury, Jake Kaplan of The Athletic reports.

Brantley was eligible to return from the injured list Wednesday, but he was not ready to be activated. Manager Dusty Baker gave an update Thursday, telling reporters that Brantley had initially progressed rapidly but has recently "hit a lull in the action." Baker went on to state that Brantley's return would take longer than the team had initially hoped, though did not provide any specific timeline.