Mets’ Francisco Alvarez needed to fix his swing, J.D. Martinez gave him guidance
Alvarez sought help at Maven Baseball Lab, a training facility frequented by Martinez and other professional players.
Alex Bregman finds a new home, plus Anthony Rendon out for 2025
This is The Athletic’s MLB newsletter. Sign up here to receive The Windup directly in your inbox. Alex Bregman is the latest Astro to leave — he’ll be in a Red Sox uniform this year. Nick ...