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Top 10 prospects who could be September callups

MLB.com

Recent rookie classes have produced a wave of generational shortstops in Carlos Correa, Francisco Lindor and Corey Seager, as well as a host of other future stars. This year, however, power has been the defining trait of Major League Baseball's rookie contingent, with Aaron Judge and Cody Bellinger erupting to hit 37 and 34 home runs, respectively, to emerge as Rookie of Year Award favorites.

Overall, nine in the top 30 of MLBPipeline.com's preseason Top 100 Prospects list have graduated off of the list, while seven others in that top 30 have gotten big league time. Current No. 1 prospect Yoan Moncada, No. 2 Amed Rosario, No. 4 Rafael Devers and No. 19 Ozzie Albies are all in the big leagues, though Moncada recently landed on the disabled list with a right shin bone contusion.

Recent rookie classes have produced a wave of generational shortstops in Carlos Correa, Francisco Lindor and Corey Seager, as well as a host of other future stars. This year, however, power has been the defining trait of Major League Baseball's rookie contingent, with Aaron Judge and Cody Bellinger erupting to hit 37 and 34 home runs, respectively, to emerge as Rookie of Year Award favorites.

Overall, nine in the top 30 of MLBPipeline.com's preseason Top 100 Prospects list have graduated off of the list, while seven others in that top 30 have gotten big league time. Current No. 1 prospect Yoan Moncada, No. 2 Amed Rosario, No. 4 Rafael Devers and No. 19 Ozzie Albies are all in the big leagues, though Moncada recently landed on the disabled list with a right shin bone contusion.

There is plenty more talent to come, too, with Major League rosters expanding on Friday. Here's a list of the top 10 prospects, some of whom have been up previously, who could get called up -- call it part probability, part wish list -- for the final month of the regular season.

Ronald Acuna, OF, Braves (No. 8 on Top 100)
Acuna's promotion in September involves some wishful thinking, but the 19-year-old outfielder has made a strong case by hitting .325 with 20 home runs and 42 stolen bases across three levels. He has been especially hot since moving up to Triple-A, and while he's not a lock to get the call, the five-tool standout appears ready to make an impact at the highest level.

Video: Jonathan Mayo discusses Ronald Acuna on The Rundown

Walker Buehler, RHP, Dodgers (No. 13)
The Dodgers moved Buehler from the rotation to the bullpen earlier this month after promoting him to Triple-A, and it's in that role he stands to help the most if promoted. The 2015 first-rounder has dominated across three levels this season, piling up 123 strikeouts in 86 2/3 innings with a dynamic arsenal that could make him a bullpen force in September.

Brent Honeywell, RHP, Rays (No. 14)
This year's SiriusXM All-Star Futures Game MVP has been at his best during the second half, posting a 2.31 ERA with 48 strikeouts and nine walks over 39 innings (eight starts) in Triple-A. Durham's trip to the International League playoffs could delay Honeywell's arrival in the big leagues, and his recent four-game suspension for disciplinary reasons also clouds his callup picture, but the right-hander's capacity to make an immediate impact is undeniable.

Francisco Mejia, C, Indians (No. 16)
Mejia authored a 50-game hitting streak in 2016, and he's continued to post big numbers this season, including a career-high home run total, in Double-A at age 21. Already on Cleveland's 40-man roster, the switch-hitting Mejia could serve as the team's third catcher down the stretch, and he's arguably an upgrade at the plate over Roberto Perez and Yan Gomes.

Video: Jonathan Mayo discusses prospect Mejia on The Rundown

Franklin Barreto, SS/2B, A's (No. 37)
Barreto homered in his big league debut in June but ultimately batted just .190 over 11 games before returning to Triple-A. The 21-year-old middle infielder has swung the bat well back in the Pacific Coast League and especially of late, posting a .330/.366/.538 slash line with 12 extra-base hits and 16 RBIs in 24 games this month.

Anthony Alford, OF, Blue Jays (No. 49)
Alford also received a brief taste of the Majors earlier this season, as he went 1-for-8 over four games with Toronto before landing on the disabled list for nearly six weeks with a left hamate fracture. The 23-year-old outfielder is still working to strike a balance to his overall game, but his dynamic tools and his capacity to make adjustments should earn him more looks in Toronto's outfield during the season's final month.

Video: Top Prospects: Anthony Alford, OF, Blue Jays

Jack Flaherty, RHP, Cardinals (No. 53)
After St. Louis traded Mike Leake to Seattle on Wednesday, Flaherty will be joining the Cardinals' rotation for his big league debut on Friday, a fitting reward for the 21-year-old righty after his breakout campaign across the Double- and Triple-A levels. With a 6-1 record and a 1.98 ERA over his past nine starts, Flaherty had little left to prove in the Minors.

Scott Kingery, 2B, Phillies (No. 56)
Kingery has checked every box between the Double- and Triple-A levels, hitting for both average (.306) and power (26 homers) while utilizing his speed on the basepaths (28 steals) and playing plus defense at the keystone. He's blocked at the position by Cesar Hernandez and not currently on the 40-man roster, but that should not entirely deter the Phillies from offering their second baseman of the future a look in September.

Chance Adams, RHP, Yankees (No. 60)
The Yankees traded for starters Sonny Gray and Jaime Garcia at the Deadline and have Jordan Montgomery in the queue, but it's fair to think the club will need even more help as it battles for a playoff spot. Adams, with his ability to induce whiffs and tons of weak contact -- he's held hitters to a .188 average in 307 1/3 career innings -- could aid them on that front, though possibly not until late in the month.

Video: Top Prospects: Chance Adams, RHP, Yankees

J.P. Crawford, SS/3B, Phillies (No. 61)
Crawford has turned it on to post a .279/.380/.500 slash line with eight homers during the second half, but it's the fact that he's played both second and third base almost exclusively of late in Triple-A that suggests the 22-year-old could get a look at multiple positions on Philly's infield in September.

Mike Rosenbaum is a reporter for MLB.com. Follow him on Twitter at @GoldenSombrero.