The Oakland A’s farm system took a hit last week with the loss of pitcher Daulton Jefferies, who will undergo Tommy John surgery, via Melissa Lockard of Oakland Clubhouse, and team beat writer Jane Lee. Jefferies, one of the A’s top picks in last summer’s draft, will miss the rest of the season.
The 21-year-old out of UC Berkeley already had health concerns when he turned pro, having missed time in college due to his shoulder and calf. Oakland gambled on him anyway, but unfortunately the injury bug won this round.
Jefferies was voted the A’s No.