Identifying deep sleepers can make all the difference in Fantasy because they provide huge return at virtually no cost. In fact, drafting a pitcher whom others slept on can change your entire team's outlook.

That's why your Fantasy baseball prep isn't complete until you see Fantasy analyst Jeff Zimmerman's top lowly owned starting pitchers. 

Zimmerman has written at FanGraphs, Hardball Times, RotoWire, ESPN, Baseball America, and Beyond the Boxscore. He has won several FSTA awards including Best Baseball Series and Football Writer of the Year. He's participated in Tout Wars and won it twice (15-mixed auction and 12-team H2H). Along with Tanner Bell, he just published the first edition of "The Process", a complete guide for running your own fantasy baseball start-to-finish.

Now he's studied the upcoming MLB season and has identified the top lowly owned starting pitchers you need to know heading into the season. One sleeper who made Zimmerman's list: Cardinals SP Dakota Hudson, who's only owned in 22 percent of CBS Sports leagues.

"The Cardinals placed their trust in Dakota Hudson to be their 5th starter, and Fantasy players should be watching his starts closely to determine his talent level," Zimmerman said. "Hudson has been touted as a pitching prospect with Baseball America ranking him 74th overall coming into this season... Hudson features a sinking 96-mph fastball that generated a 65 percent ground-ball rate last season. Additionally, he has a devastating cutter (17 SwStr%) that can be mixed up with his actual below-average slider (only 7% SwStr%). The pieces are there for a major breakout, but he needs to put everything together."

Zimmerman has also identified a pitcher you're not thinking about who's owned in less than 50 percent of CBS Sports leagues, but has MAJOR upside. You ABSOLUTELY need to see who it is before you draft.

So who are the top sleeper pitchers available in your Fantasy baseball league? And which undervalued pitcher is a must-add selection? ... Join SportsLine right now to see Jeff Zimmerman's list of undervalued pitchers, all from an award-winning Fantasy baseball analyst who can give you a huge edge in your league!