Giants placed LHP Carson Whisenhunt on the 15-day injured list with a left elbow sprain.
Whisenhunt is slated to undergo an MRI that will determine the severity of the issue. The 25-year-old, who has been one of the better pitching prospects in San Francisco’s system for a couple years, is highly likely to miss the final months of the season. The hope is that he won’t require surgery, which would require an extended absence that would stretch into next season.