Just like finding a great sleeper, taking a chance on a promising rookie can pay dividends in a big way for your fantasy team. Craig Kimbrel had a huge season as he slid into the Braves’ closer role and put up big numbers. Jeremy Hellickson had a solid season and Desmond Jennings had an impact in the second half. On the other hand, Aroldis Chapman didn’t quite produce what the hype suggested he would and Chris Carter barely made it up to The Show at all. The point is there’s huge risk involved, but careful research can pay off in the end. with that in mind, here are some rookies that could make a fantasy impact, either right away or sometime during the season.

Matt Moore, SP, Tampa Bay Rays
Moore is the latest to come out of the pitching factory that is the Rays’ farm system. The fact he shut out the Rangers in the postseason and is considered among the best prospects in all of MLB says enough. He’s practically penciled into the Rays’ rotation so he will contribute right away and will be an early favorite for AL Rookie of the Year. Expect a dozen wins to go along with an ERA in the mid 3s, a WHIP around 1.2 and 170-190 Ks.

Jesus Montero C/DH, Seattle Mariners
Being a top prospect for the Yankees comes with some extra attention, but that is no more as Montero was shipped to Seattle for Michael Pineda. The downside for him is that he limited to UTIL fantasy role for now until he gains C eligibility. Nevertheless, the bat is there to produce right away even as a DH. 20-25 homers, 70-80 RBIs and an average in the .270s are not out of the realm of possibility since he’ll most likely be in the middle of the Mariner lineup.

Julio Teheran, SP, Atlanta Braves
Even after an uneven taste the majors at the end of last season, Teheran is still one the top pitching prospects in baseball. He has the raw stuff to be a top of the rotation guy down the road. However, it’s not clear if he’ll start the season in the big league, so he shouldn’t be counted out right away. Still he’s one to keep track of as he may earn a callup at some point.

Mike Trout, OF, Los Angeles Angels
Ranked ahead of Bryce Harper by some prospect lists, Trout is the real deal. Trouble is that the Angel outfield is crowded at the moment, so he might not get regular at bats right away, but his talent will find a way. He has power potential that will develop down the road, but right now he profiles as more of a leadoff type with a little power, but big SB potential.

Jacob Turner, SP, Detroit Tigers
The ninth overall pick in the ’09 draft debuted in the big leagues last year at only 20 and looks to be the favorite to land the 5th spot in the Tiger rotation. He combines velocity with command and could slot in nicely right behind Verlander in the future. However, for fantasy purposes he’ll definitely have some struggles but is worth keeping an eye on in case he catches fire at some point during the season.

Anthony Rizzo, 1B, Chicago Cubs
Rizzo struggled in his short stint with the Padres last season. Now with the Cubs, he should not be counted out. He has big time power potential and should hit for a high average. He’s blocked at first by Bryan LaHair right now and will likely begin the season in the minors. but it won’t be long before he establishes himself in the middle of the Cubs’ lineup.

Bryce Harper, OF, Washington Nationals
The Chosen One has a chance to be an Opening Day starter for the Nats at the age of 19. More then likely he’ll be sent down to the minors so as not to rush him. Still he’ll be called up at some point this season and could produce right away. You shouldn’t draft-and-stash him, but watch his progress early on to see if the team might accelerate his schedule and bring him up to The Show.