While their value is highly established in dynasty and keeper leagues, there are still prospects that are worth holding onto in redraft leagues while you wait for their call up to the big leagues. Each week I'll be looking at my top five prospects from our top 150 prospects lists who currently aren't in the majors, but could be worth holding in a bench spot given their potential value for the rest of the season. These rankings are based solely on their potential 2015 value, and do not include any players that are expected to be on Opening Day rosters.
1. Kris Bryant (Cubs)
You know the reasons being given for why Bryant is in the minors, and regardless of whether you believe the ones the Cubs gave are the real ones, Bryant will be up within two to three weeks, and could still hit 30 home runs even if he finishes the month of April in Iowa. I hope that it goes without saying, but he should be held onto in every league, as he could provide more value in four months than a number of third basemen in the whole season.
2. Carlos Rodon (White Sox)
3. Andrew Heaney (Angels)
The Angels haven't announced their fifth starter yet, but since they also don't need one until April 14th, they are likely to use the roster spot for some other need instead. It doesn't appear to have been decided whether it will be Heaney or Nick Tropeano just yet, but Heaney would definitely be the better option for fantasy owners. It may only be a single spot start though, as Garrett Richards is expected to return a week or so later.
4. Noah Syndergaard (Mets)
The Mets continue to have an abundance of starting pitching, with Syndergaard being the potential first call up should someone falter or get traded. Timothy Finnegan had a great profile of Syndergaard earlier in the week and I recommend you check it out to see what he's capable of. Dillon Gee seems the most likely candidate to be replaced, either because of a trade or ineffectiveness.
5. Rusney Castillo (Red Sox)
Castillo suffered an injury fairly early on in Spring Training, and as a result wasn't really ready to play in the majors everyday when he was optioned to AAA Pawtucket. It will be better for him to get everyday at bats down there, and is really only a Shane Victorino injury away from returning.