As MLB ramps up post-All-Star break, savvy fantasy owners should keep an eye on the waiver wire as several undervalued hitters are emerging as strong options for Week 17. With the trade deadline looming, players like Austin Hays of the Cincinnati Reds (23% rostered) are making noise, hitting four homers since returning from injury, particularly excelling against lefties. Jordan Beck of the Colorado Rockies (17% rostered) is also heating up with a solid .296 average in recent games, making him a candidate for a boost in production during upcoming matchups. Jesus Sanchez (OF, Miami Marlins; 6% rostered) continues to show power potential and could be moved to a better lineup before the trade deadline, while St. Louis Cardinals' Victor Scott II (14% rostered) brings unmatched speed with 25 stolen bases this season. Lastly, Nationals' prospect Brady House (5% rostered) is proving his worth with a .308 average since his call-up, making him a valuable fill-in for those needing infield depth.