Corey Seager, Julio Urias, Joc Pederson rated top 20 prospects in MLB.com midseason rankings

The final one of the prospect-following quartet, Jim Callis at MLB Pipeline, has released his midseason prospect lists, and one thing remains consistent. The Dodgers have three of the top 20 prospects in baseball.

Shortstop a Corey Seager was ranked the No. 17 prospect in baseball by Callis, 17-year-old left-handed phenom pitcher Julio Urias was ranked No. 18, and center fielder Joc Pederson ranked No. 19.

Seager, 20, was promoted to Double-A Chattanooga over the major league All-Star break, and has a hit in all six games so far with the Lookouts, hitting .375 (9-for-24) with three doubles and a triple in his latest stop. Seager was ranked No. 34 by MLB.com before the season.

"Seager has a smooth swing, and he consistently squares up balls, spraying line drives from gap to gap," Callis wrote of Seager. "He has already shown good power, and that is only expected to improve as he matures."

Urias, who made the large jump from No. 64 in the preseason to No. 18, struck out six in four innings on Sunday for Rancho Cucamonga, and has a 3.03 ERA in the hitter-friendly California League at age 17, with 67 strikeouts and 28 walks in 59⅓ innings.

Joc Pederson, 22, hit his 22nd home run for Triple-A Albuquerque on Sunday, and moved up from No. 36 in the preseason. Pederson leads the Pacific Coast League in on-base percentage (.455), OPS (1.047), walks (77) and run scored (72), second in home runs (22) and slugging percentage (.592) and third in stolen bases (25).

"Pederson is a solid runner, and he makes good use of his speed on the basepaths and in the outfield," Callis wrote of Pederson. "Pederson has the range to play center field and an arm strong enough for right field, if necessary."

Pederson leads the PCL in walks

Of the four major prospect watchers - MLB.com, Baseball America, Baseball Prospectus and Keith Law at ESPN - the lowest midseason ranking of Seager, Urias and Pederson is Law placing Pederson at No. 22.

The midseason MLB.com list by Callis stands out among the others by including 2014 draftees in the rankings, and listing the top 20 prospects for each organization.

First-round draft pick Grant Holmes, picked No. 22 overall, checks in as the club's No. 4 prospect, with an estimated time of arrival in the majors of 2017.

"Though Holmes doesn't have much projection left in his strong frame, that's not an issue, because he already has the makings of two well-above-average pitches," wrote Callis.

Second-round outfielder Alex Verdugo showed up at No. 10, just behind Dodgers 2013 minor league player of the year Scott Schebler, who moved up from No. 15 to No. 9 with a solid season with the Lookouts, hitting .268/.352/.532 with 20 doubles, 18 home runs and 12 triples in 102 games.

Here is the full MLB.com midseason Dodgers top 20 prospects:

1) Corey Seager ss

2) Julio Urias lhp

3) Joc Pederson of

4) Grant Holmes rhp

5) Chris Anderson rhp

6) Zach Lee rhp

7) Tom Windle lhp

8) Chris Reed lhp

9) Scott Schebler of

10) Alex Verdugo of

11) Pedro Baez rhp

12) Jose Dominguez rhp

13) Jesmuel Valentin 2b

14) Darnell Sweeney if/of

15) Victor Arano rhp

16) Zachary Bird rhp

17) Yimi Garcia rhp

18) Carlos Frias rhp

19) Onelki Garcia lhp

20) Kyle Farmer c