13. Sandro Fabian
At 19 years-old, Sandro Fabian is arguably the most exciting young prospect in the full-season system. Despite a trip to the AZL in 2016, followed by four days at Spring Training in March, I was unable to get any noteworthy footage of the Dominican outfielder, who signed with San Francisco in July of 2014 for half a million. Fabian used his strong hands and what Fangraphs' Eric Longenhagen calls "natural bat-to-ball ability" to rake the Arizona League in his United States debut, slugging .522 with a .182 ISO in 174 plate appearances. Many see Fabian as a corner outfielder, and in 2017 with the Augusta GreenJackets, he's seen most of his reps in right field while Ashford Fulmer has manned center.
14. Jacob Gonzalez
In a bit of a surprise pick, the Giants selected 19-year-old Jacob Gonzalez, son of Luis, in the second round, 58th overall this June. At 6'4", Gonzalez is built for power and should provide that for the Giants as he progresses through the ranks with his strong hands and above-average bat speed. He plays third base and his best assets at the corner are his range and hands. Whether he can stick there will depend on if he improves his arm strength. Otherwise, he could wind up at first base further down the road. Gonzalez, who bats from the right side, began his pro career at unbelievable pace, collecting 15 hits, including four doubles and a triple, in his first five games with the AZL Giants.
15. Jordan Johnson
Jordan Johnson went from 23rd-rounder to top-20 prospect with one breakout half-season. Johnson, a native of Elk Grove, Calif. who went to Franklin High School and Cal State Northridge, began the 2015 season late in rookie ball while building strength back up from a minor tear in his lat muscle. He joined the San Jose Giants, jumping over Class-A Augusta, in early August where he made six starts and was crucial for the team in the rotation during their playoff run. Johnson ended the regular season with a 4.2 inning, 10-strikeout performance that opened many eyes. Johnson features a low-to-mid 90s four-seam fastball with moderate running action, a 12-6 curveball, a circle-changeup, and is currently in the process of adding a two-seam fastball.
16. Miguel Gomez
No question the breakout prospect of the 2016 year for the Giants, switch-hitting corner infielder Miguel Gomez has been a hitting machine since he was signed by San Francisco back in 2011. Aside from a rough 2012 season in the Dominican Summer League, Gomez has hit over .300 each season since, producing more power from the left side while compiling a slightly higher average from the right side. Gomez didn't play catcher at all in 2016 and instead flopped between first and third base, and moving to second base for the majority of 2017. Gomez works with a compact stroke and uses all parts of the field, and best of all, he rarely strikes out. He has a career strikeout rate of 12.5 percent, but it was even lower at 11.3 in 2016.