As the 2025 MLB season approaches Week 10, understanding which prospects to stash can make or break your fantasy team. Recent promotions like Jac Caglianone show the value of being ahead of the curve. Keep your eyes on Ryan Ritter of the Colorado Rockies, who is boasting impressive stats with a .305 average and a strong on-base streak. Andrew Painter of the Philadelphia Phillies, despite a rough start, is building up his game and readying for a major league debut. For the Milwaukee Brewers, Anthony Seigler's versatility and impressive minor league performance signal he could be a valuable addition soon. Lastly, Roman Anthony of the Boston Red Sox is highly regarded but may be held back for service time considerations. Stashing these players could provide significant returns as the season progresses.