Vientos is positioned to transition from third base to first, showing growth in his performance that has earned him recognition within the Mets' organization.

Mark Vientos had a breakout performance last season, hitting 27 home runs, making him a promising player for the 2025 fantasy season.

Mark Vientos is taking on first base responsibilities to improve his versatility, which is crucial for his development and the team's lineup options. The coaching staff emphasizes the importance of him becoming comfortable with the footwork and positional play.

Mark Vientos is also being groomed for first base, suggesting the Mets are looking ahead in case Alonso signs elsewhere, reflecting a proactive approach to roster management.

Mark Vientos is also working on transitioning to first base as the Mets look for alternatives if Alonso departs. He had a strong previous season, indicating his readiness for increased responsibility.