Finding the perfect addition to your Fantasy baseball team via the waiver wire is the key to winning in any Fantasy league, but if it were easy, anyone could do it. And if you're searching for a hitter to round out your Fantasy baseball lineup, you absolutely need to see what SportsLine's Fantasy expert Alex Chamberlain has to say.

Chamberlain is a 5-time Fantasy Sports Writers Association award finalist and was recognized as 2015's Newcomer of the Year and 2018's Fantasy Baseball Writer of the Year. He competes in Tout Wars and contributes (other) work online at RotoGraphs and in print in Lindy's Sports annual Fantasy Baseball magazines. Previous bylines include Baseball Prospectus and Rotoballer. If there's anybody who knows what it takes to win a league, it's him.

Now, he's done an in-depth analysis of the best hitters who are widely available entering Week 10. One we'll give away: Royals 1B Ryan O'Hearn, who's available in almost 70 percent of CBS Sports Leagues.  

"A sunken .210 BABIP might be the biggest culprit in O'Hearn's lack of success this year," Chamberlain said. "Meanwhile, he's still hitting the ball well enough to warrant some speculation on a homer binge; indeed, he hit his fifth home run just Sunday putting him on pace for 20-plus, which I would argue is a conservative estimate, given sustained playing time. Most importantly, though, O'Hearn has thus far made substantial gains in his plate discipline, swinging and missing less than league average (9.9% SwStr), validated by gains in contact in and out of the zone."

Chamberlain has also identified which hitters you should target on waivers if you need a jolt for your squad, including an undervalued player who's poised for a breakout. Anyone who adds this player could hit it BIG.

So which hitters should you target on the waiver wire? And which undervalued hitter is a must-add selection? ... Join SportsLine right now to see the best league-winning free agents, all from one of the most respected voices in the industry!