Sean O’Brien

@Buckeyeflipper

Follow on CollX

Rookie Seller

Rookie Buyer

Warming Bernabel

2026 Topps

#55 Warming Bernabel

$0.49

Kyle Backhus

2026 Topps

#21 Kyle Backhus

$1.00

Bob Seymour

2026 Topps

#70 Bob Seymour

$1.40

Kyle Karros

2026 Topps

#334 Kyle Karros

$1.00

Roki Sasaki

2026 Topps

#66 Roki Sasaki

$2.00

National League Leaders ERA (Paul Skenes / Yoshinobu Yamamoto / Cristopher Sánchez)

2026 Topps

#203 National League Leaders ERA (Paul Skenes / Yoshinobu Yamamoto / Cristopher Sánchez)

$1.00

Byron Buxton

2026 Topps - 2025 Greatest Hits

#GH-12 Byron Buxton

$1.50

Samuel Basallo

2026 Topps - 1991 Topps Baseball 35th Anniversary (Series One)

#T91-20 Samuel Basallo

$2.00

Byron Buxton

2026 Topps - Stars of MLB

#SMLB-22 Byron Buxton

$1.00

Craig Yoho

2025 Topps Chrome Update

#USC131 Craig Yoho

$1.50

Sparky Lyle

2025 Topps Allen & Ginter - Wicked Curves

#WC-32 Sparky Lyle

$1.55

Paul Molitor

2025 Topps Allen & Ginter

#175 Paul Molitor

$1.00

Emma Roberts

2025 Topps Allen & Ginter

#286 Emma Roberts

$1.45

Derek Jeter

2025 Topps Allen & Ginter - Sweet Victory

#SV-12 Derek Jeter

$1.50

Sparky Lyle

2025 Topps Allen & Ginter - Wicked Curves

#WC-32 Sparky Lyle

$1.50

Roderick Arias

2024 Donruss

#145 Roderick Arias

$1.00

Devin Taylor

2025 Panini - Stars & Stripes USA Baseball - Stars

#1 Devin Taylor

$3.00

Steven Milam

2025 Panini - Stars & Stripes USA Baseball - Stars

#69 Steven Milam

$3.00

Cristofer Torin

2023 Bowman Chrome - Prospects Shimmer Refractor

#BCP-204 Cristofer Torin

$3.00

Ethan Bass

2025 Panini - Stars & Stripes USA Baseball - Stars

#136 Ethan Bass

$2.00

Daniel Cuvet

2025 Panini Stars & Stripes USA Baseball

#53 Daniel Cuvet

$2.00

Aaron Judge

2024 Topps Heritage - New Age Performers

#NAP-15 Aaron Judge

$1.50

San Diego Padres

2022 Topps - Purple

#124 San Diego Padres

$1.25

Noah Cameron

2021 Panini Prizm Draft Picks - Blue Velocity Prizm

#PDP211 Noah Cameron

$6.00