As the MLB season progresses into Week 19, four hitters have emerged as potential fantasy baseball sleepers. Anthony Volpe of the New York Yankees is finding his rhythm after a rough July, showcasing an uptick in power despite a low BABIP suggesting he's been unlucky. His recent performance against the Marlins hints at a breakthrough.

Christian Walker, now with the Houston Astros, displayed signs of returning to form with an impressive July OPS, although concerns linger about his strikeout rate and walk percentage. Royce Lewis, coming off an injury, has impressed with a solid OPS and a significant reduction in strikeouts, though his power numbers are still under scrutiny. Lastly, Giancarlo Stanton continues to display his power capabilities, but with signs of potential regression looming, fantasy managers must tread carefully when considering him in trades.