As we dive into Fantasy Baseball Week 8, it's time to sharpen your roster with some savvy waiver wire moves. Whether you're patching up an injury or chasing a hot streak, our top 10 sleeper hitters—all rostered in less than 80 percent of CBS Sports leagues—offer prime opportunities to boost your lineup. Remember to check back Sunday for the latest updates before locking in your picks.

Leading the charge is Jac Caglianone, a rising star whose power and plate discipline have made him a must-watch. Alongside him, Carlos Cortes brings a blend of contact hitting and on-base skills that could provide steady production. These aren't guaranteed stars, but they're often the best hidden gems on the waiver wire.

This week's best hitter matchups spotlight teams with favorable schedules. The Mariners face Houston and San Diego, offering a mix of pitching challenges and opportunities. The Diamondbacks travel to Texas and Colorado, where Coors Field's hitter-friendly environment could spark offensive fireworks. The Royals match up against the White Sox and Cardinals, both exploitable for fantasy purposes.

Other sleeper-friendly matchups include the Athletics against the Cardinals and Giants, the Nationals taking on the Reds and Orioles, and the Padres facing the Brewers and Mariners. The Phillies head to Boston and Pittsburgh, while the Astros host Seattle and Texas. The Tigers visit the Mets and Blue Jays, and the Twins welcome Miami and Milwaukee.

For context, these sleeper picks thrive in weeks where volume and opponent quality align. Keep an eye on players like Caglianone, who's been turning heads with his raw power, and Cortes, whose consistent at-bats make him a reliable fill-in. With the right matchups, even a waiver wire addition can swing your week.