This season has been literally epic for rookies in the major leagues. It seems that its a weekly occurrence for a top rookie to be called up to the team, and I am sure that baseball prospectors are licking their chops over the pending September call ups that will be happening shortly. There are a few rookies that are poised to make a big impact as the season comes to a close, some of which are relatively under appreciated. To think how many of these guys are on playoff teams is just crazy, which only makes this year that much better.

Kyle Schwarber – Cubs

I dont think there has been a bigger surprise in baseball than Schwarber’s success so early on in his MLB career. He has undoubtedly outshined the other big name on his team in Kris Bryant, putting up some really nice power numbers. As the Cubs make a final push, both Bryant and Schwarber will need to play extremely well, and that will mean some big bumps for their cards if they do. Right now, he is much cheaper than Bryant, but that could change if he continues to play like he is.

As with many of the guys on this list, his prices are climbing:

2014 Bowman Chrome Kyle Schwarber Auto RC BGS 9.5

2015 Bowman Inception Kyle Schwarber Auto Gold Parallel

2015 Bowman Kyle Schwarber Auto Gold Refractor /50

Carlos Correa – Astros

As a former #1 pick, his ceiling should be high. That being said, the hobby seems to think he is the second coming of Mike Trout, pushing his value into the stratosphere. He has been a big part of the Astros continued push for the playoffs, which is shocking considering where they were last year. I think if you are looking to pick up a prospect, Correa is reaching his ceiling very quickly. However, if the Astros go deep in the post season, he could see even higher prices.

Insane prices for him since he hit the bigs:

2013 Bowman Chrome Carlos Correa Auto RC BGS Raw Review 9.5

2013 Bowman Victory Carlos Correa Gold Auto

2013 Bowman Platinum Carlos Correa Green Refractor Auto PSA 10

Miguel Sano – Twins

In less than 40 games, he has hit 11 HRs, which is nuts. The guy is pretty much a hulk when standing at the plate, even more impressive when you see he is only 22 years old. He may have seen time at the big leagues last year if it werent for Tommy John surgery, but that obviously hasnt phased him. For someone mashing the ball like he is, his autographs go for basically nothing. This is a perfect time to pick up his stuff.

Underrated value all around:

2015 Bowman Inception Miguel Sano "Inceptioned" RC Auto

2010 Bowman Chrome Miguel Sano Auto RC

Jung Ho Kang – Pirates

To be completely honest, I had no idea who he was prior to the start of the season. Now he is one of the front runners for NL ROY. As an international player, his prices are going to be inflated above the normal situation for a player of his caliber, but he is worth a look if the Pirates can stay atop the wild card race for the NL. He doesnt have the power numbers that some of the other guys on this list have, but he is a solid player.

2015 Topps Chrome Jung Ho Kang Purple Auto /250

2015 Bowman Inception Jung Ho Kang Auto Blue

Noah Syndergaard – Mets

Thor has had himself quite the 2015 campaign, and the Mets are on pace to win the division for the first time in a while. He is definitely in the mix for ROY, and that should help his cards out a lot. He has some electric stuff when he is on point, and playing in NY doesnt hurt at all. With pitchers, injuries are always a huge concern, which is maybe why his values arent as high as some of the big hitters.

2015 Topps Chrome Noah Syndergaard Orange Auto RC /25

2010 Bowman Chrome Noah Syndergaard RC Auto Refractor

Joc Pederson – Dodgers

One of the only rookies that made the All Star team, he has cooled off at the plate considerably since his hot start. He still put up 23 HR so far, and the Dodgers in the playoffs makes for great TV. They are only a tiny bit ahead of SF for the West lead, and that could prove pretty interesting. Pederson has been one of the top guys of the class all year, and I would love to see him turn it back on.

2012 Bowman Chrome Joc Pederson Auto PSA 10

2015 Gypsy Queen Joc Pederson Auto Patch Booklet

Kris Bryant – Cubs

He is the face of the 2015 class. He is the top valued guy in the group, and his potential seems to be pretty high. The issue is that, like Pederson, he hasnt been that productive as of late, seeing his average and power numbers drop considerably since making the All Star roster. His early call up in the season helps for him to be a top contender for ROY, and it will be quite the sweet experience for Cubs fans who have been dying for a playoff run for years.

Prices are still high:

2015 Allen & Ginter Kris Bryant Framed Auto

2014 Bowman Chrome Kris Bryant Black Refractor Auto BGS 9.5

This is going to be a fun chase over the next few weeks, best to get stocked up now. If one of these guys goes off in the playoffs, the values will be white hot.