J.D. Martinez declines to opt out, remains with Red Sox
Here all of the MLB players that are opting out of the 2020 season
MLB, players agree on format for 2020 season, with games starting
Who Will Benefit from the MLB Layoff as the 2020 Season Starts
Mike Leake, Ryan Zimmerman and Joe Ross opt out of MLB season
MLB players with 2024 opt-outs or player options
MLB players with 2024 opt-outs or player options
Field of Dreams' MLB baseball game draws 5.9 million viewers for Fox
Top MLB free agents: Ranking the 2020-21 class
2021 MLB Awards Race Primer: MVP, Cy Young, Rookie of the Year
Brewers sign Voit, designate Hiura for assignment - NBC Sports
MLB Scouts Identify 25 Players Turning Heads At 2021 Spring
MLB players with 2024 options and opt-outs
All the Jewish MLB players to watch in 2023 - The Times of Israel
2021 MLB Season Preview: Team-by-Team Capsules - The New York Times