Mike Zuanich - Rockies 1B/RF DOB: 07/10/86
Mike Zuanich earned a promotion to AA where he can hope to continue his stellar hitting against pitchers more his age. In 58 games he hit .366/.455/.674 bringing his career line to .333/.429/.563. If he can hit AA pitching he could move next in line behind Todd Helton in the Rockies depth chart and earn a few MLB at bats in September.
Jio Mier – Astros SS DOB: 08/26/90
Despite hitting just .205/.304/.282 over his past 10 games with 14 strikeouts, Mier has been promoted to High-A. Mier has pretty good power for a young shortstop and will need it to continue to develop if he's going to be a fantasy asset. He strikes out a bit too often but is young enough to improve that aspect of his game and he walks quite a bit so we know he has a good eye at the plate.
Nick Franklin - Mariners SS/2B DOB: 03/02/91
Nick Franklin has been moved up to AA after a 3-6 night with 4 runs and 3 stolen bases despite hitting just .200/.263/.314 the previous 9 games. In 64 games he has hit .275/.356/.411 with 13 stolen bases in 14 tries. The power numbers are surprisingly low considering he is playing in the power friendly California League and he hit 23 home runs last year.
Yasmani Grandal - Reds C DOB: 11/08/88
Yasmani Grandal has hit .296/.410/.510 in 56 California League games and earned himself a promotion to the AA Southern League. Grandal has been living up to his first round draft choice by hitting for power, average and drawing walks. He is also doing well on the defensive side of the ball with a 34% CS% but he has also allowed 14 passed balls. The Reds are extremely deep at catcher with Devin Mesoraco, Ramon Hernandez and Ryan Hanigan all blocking Grandal's path to the majors.
Vincent Catricala - Mariners 3B/1B DOB: 10/31/88
Catricala has been having a phenomenal season so far but he is starting to slow. After hitting .379/.442/..630 in his first 54 games he has hit just .256/.356/.385 in the last 10. Now 1116 plate appearances into his pro career he has 70 doubles, 39 home runs and a .318/.392/.516 triple slash. If Catricala can stick at third he will be a valuable keeper league commodity due to his solid hit tool and emerging power.
Gary Brown - Giants CF DOB: 09/28/88
Brown got off to a blazing start but has slowed considerably lately. After hitting .369 with 30 stolen bases in the first 2 months of the season he is hitting only .200 with 2 stolen bases in June. Brown's 32/14 SB/CS will need to improve.
Tyler Skaggs - Diamondbacks SP DOB: 07/13/91
Skaggs struggled with command in the first month and had a 4.85 ERA, but he ironed out those problems in May and had a 2.25 ERA for the month. The control issues are creeping back in June with 8 walks in 17 innings. If Skaggs can keep the ball in the zone he is one of the most dominant pitchers in the minors. He is only 19 and leads the league with 102 strikeouts. His 1.18 WHIP ranks fifth and his 3.36 ERA is sixth. There aren't many pitchers in the minors who can strike batters out at the same rate as Skaggs while inducing as many groundballs. Command of his nasty stuff is the only thing standing in the way of stardom for this young lefty.
Zack Wheeler - Giants SP DOB: 05/30/90
Zack Wheeler's numbers have been surprisingly similar to the ones he posted last year. In 58.2 innings last year he allowed 47 hits, and 38 walks while striking out 70. In 60.2 innings this year he has given up 45 hits, 33 walks and struck out 68. Much like Skaggs, Wheeler keeps the ball on the ground with 1.31 ground outs for every fly out.
Jedd Gyorko - Padres 3B DOB: 09/23/88
The Padres slugging third baseman is having an awesome season and should be promoted to AA soon. In 70 games he has 32 doubles and 15 home runs. His triple slash is .381/.444/.650 and his 1.094 OPS ranks fourth in the league.
Michael Choice - A's CF DOB: 11/10/89
Choice's bat may finally be coming around. In the past 10 games he has 5 home runs and a 1.141 OPS. He is hitting .248/.350/.504 on the year.
Kody Hinze - Astros 1B DOB: 07/29/87
Hinze's bat refuses to slow and he is hitting .444/.583/.852 in 15 June games. He leads the league with a 1.146 OPS and has an impressive 61 walks to go along with his 19 home runs and .346 AVG.
Jonathan Galvez - Padres 2B/SS DOB: 01/18/91
Galvez has made strides with his bat and on the bases this year. He has an excellent .363 OBP and has stolen 21 bases while being caught only twice. He has also hit 6 home runs. In 18 June games he has hit .361 with 8 doubles.