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 5. One we'll give away: Royals 1B/3B Hunter Dozier, who's available in 55 percent of CBS Sports Leagues. 

"The most difficult decision now is determining which early-season small-sample performances are reliable," Chamberlain said. "Just about anything can happen in 70, 80, 90 plate appearances. While it's easy to accept early performances as the gospel, it's even easier to dismiss almost all of them as noise, simply random variance, when, truthfully, some are more legitimate than others... Dozier's newfound plate discipline indicates legitimate skills gains. His zone contact skills coupled with a less aggressive approach cultivated selectivity, not passivity, and has helped his slash line improve in ways unseen by nearly anyone else this season... If you sleep on Dozier this week, he might be gone by next."

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!