Bad news for one of the Giants’ top prospects, as Henry Schulman of the San Francisco Chronicle reports that outfielder Mac Williamson will undergo Tommy John surgery on his right elbow tomorrow.
Williamson has been bothered by the elbow injury all spring. The 23-year-old was originally expected to begin the season with Double-A Richmond, but the Giants sent him back to High-A San Jose so he could serve exclusively as a designated hitter. However, he couldn’t play through the discomfort any longer. Position players often return from Tommy John surgery more quickly than pitchers, but the surgery is expected to end his season.
Williamson was a third-round pick in 2012 and batted .292/.375/.504 with 25 home runs and 10 stolen bases over 136 games last season in High-A. Baseball America ranked him as the Giants’ No. 5 prospect over the winter.