Availability
Mark Vientos failed to build on his 2024 breakout, with his 2025 season showing notable pullbacks in rOBA (.361 to .310), ISO (.249 to .179), and HR rate despite similar playing time. The plate skills did improve slightly (career-best strikeout rate to 24.8%), but the quality-of-contact gains from 2024 didn't hold, leaving him closer to league average overall production. The 2026 projections still lean on his raw power and everyday role potential, but expect more of a low-OBP, mid-20s HR corner bat rather than a true middle-of-the-order force. In fantasy, Vientos profiles best as a CI option in deeper leagues where power is scarce, with limited upside unless the 2024 batted-ball profile returns.