2025 Topps Series 1 Mega Collection - TRAINING GROUNDS
25 card training grounds subset from 2025 Topps Series 1 Mega Collection (Baseball). Includes 3 rookie cards.
| # | Player | Team | Notes |
|---|---|---|---|
| TG-1 | Nolan Arenado | St. Louis Cardinals | |
| TG-2 | Aaron Judge | New York Yankees | |
| TG-3 | Bryce Harper | Philadelphia Phillies | |
| TG-4 | Fernando Tatis Jr. | San Diego Padres | |
| TG-5 | Julio Rodríguez | Seattle Mariners | |
| TG-6 | Bobby Witt Jr. | Kansas City Royals | |
| TG-7 | Vladimir Guerrero Jr. | Toronto Blue Jays | |
| TG-8 | Mike Trout | Angels | |
| TG-9 | Jose Altuve | Houston Astros | |
| TG-10 | Shohei Ohtani | Los Angeles Dodgers | |
| TG-11 | Francisco Lindor | New York Mets | |
| TG-12 | Gunnar Henderson | Baltimore Orioles | |
| TG-13 | Elly De La Cruz | Cincinnati Reds | |
| TG-14 | Corey Seager | Texas Rangers | |
| TG-15 | Corbin Carroll | Arizona Diamondbacks | |
| TG-16 | Ronald Acuña Jr. | Atlanta Braves | |
| TG-17 | Mookie Betts | Los Angeles Dodgers | |
| TG-18 | James WoodRC | Washington Nationals | |
| TG-19 | Brooks LeeRC | Minnesota Twins | |
| TG-20 | Dylan CrewsRC | Washington Nationals | |
| TG-21 | Rafael Devers | Boston Red Sox | |
| TG-22 | Juan Soto | New York Yankees | |
| TG-23 | Paul Skenes | Pittsburgh Pirates | |
| TG-24 | Dansby Swanson | Chicago Cubs | |
| TG-25 | Matt Chapman | San Francisco Giants |