OAKLAND -- Despite the recent influx of young talent on the A's roster, their farm system remains ripe with up-and-coming talent, evidenced by the inclusion of four prospects on MLB Pipeline's Top 100 Prospects list for 2017.
The annual ranking of MLB's Top 100 prospects is assembled by MLBPipeline.com Draft and prospect experts Jonathan Mayo, Jim Callis and Mike Rosenbaum, who compile input from industry sources, including scouts and scouting directors. It is based on analysis of players' skill sets, upsides, proximity to the Majors and potential immediate impact to their teams.
Only players with rookie status entering the 2017 season are eligible for the list. Players who were at least 23 years old when they signed and played in leagues deemed to be professional (Japan, Korea, Taiwan, Cuba) are not eligible.
Barreto, who will turn 21 in February, played in 119 games with Double-A Midland last year, and four more with Triple-A Nashville following a late-season promotion. He hit a combined .284 with 11 home runs and 53 RBIs on the year, adding a .342 on-base percentage and 30 stolen bases.
The athletic infielder, who was considered the key piece to the 2014 Josh Donaldson trade with Toronto, will be back in big league camp a second consecutive spring, and it's reasonable to think he could make his Major League debut by year's end.
Puk was the A's first-round selection (sixth overall) in the 2016 Draft. Taken out of the University of Florida, the 21-year-old was assigned to Class A Short-Season Vermont, where he compiled a 3.03 ERA across 10 starts and racked up 40 strikeouts in 32 2/3 innings.
Holmes joined the A's system as one of three pitchers acquired in an August deal that sent outfielder Josh Reddick and lefty Rich Hill to the Dodgers. He was a first-round pick (22nd overall) in the 2014 Draft, and he's since posted a 3.94 ERA between three Minor League levels in three seasons, including a 4.63 ERA at the Class A Advanced level in 2016.
Chapman is no stranger to this list, and could graduate from top prospect to Major Leaguer this season. The 23-year-old will begin the season at Nashville, where he enjoyed an 18-game stint at the end of last year. The power-hitting corner infielder has totaled 64 home runs in 269 Minor League games, hitting .243/.325/.509 over that span of three seasons.
Jane Lee has covered the A's for MLB.com since 2010. Follow her on Twitter @JaneMLB. This story was not subject to the approval of Major League Baseball or its clubs.