Brent Niederman - Signed Rookies

Christian. Husband. Father.

Featuring the collection of the greatest signed MLB Hall of Fame rookie card collection to ever exist.

[Brent Niederman - Signed Rookies @SignedRookies]

He's baaaaaaaack!

[Rich Biesterfeld @biest22]

The @cubs 2026 1st round draft pick @ethanconrad23 warming up and then hitting a sharp single in his first AB in the ACL. #Cubs #CubsProspects @WatchMarquee @BleacherNation

[Brent Niederman - Signed Rookies @SignedRookies]

@VikingsFBchat @AaronGleeman @J_Ahlness Yep! Making those tough plays look routine!

[Brent Niederman - Signed Rookies @SignedRookies]

@adam_hanson1 @StillTheKnudson Get this man his Mauer purple ice!!! Lol

[Brent Niederman - Signed Rookies @SignedRookies]

@MattStrahm @Topps @TheCardLifeTV Got a ton

[Brent Niederman - Signed Rookies @SignedRookies]

@dohyoungpark Gunna miss ya, but looking forward to what you are doing with statcast!

[Brent Niederman - Signed Rookies @SignedRookies]

@JimmyBible @huskercspackler @eBay @USPS Lololol you proved my point. Thanks, Jimmy 👍

[Brent Niederman - Signed Rookies @SignedRookies]

Rescanning the greatest collection of signed MLB HoF rookie cards ever assembled.

#sportscards #thehobby #tradingcards #topps #baseballcards #rookiecard #psa #mlb #rookie #cards #baseball #autograph #hof #halloffame #signedrookies #goatcollection

https://t.co/sOb5ebFCkO

[Brent Niederman - Signed Rookies @SignedRookies]

@huskercspackler @JimmyBible @eBay @USPS This card isn't worth $100, why would you ship insured certified mail?

[Brent Niederman - Signed Rookies @SignedRookies]

Chris Sale slider that hits Ryan Jeffers. Jeffers checked his swing and went around for a strike. Absolutely disgusting 🤢🤮#mlb twins @mlb @PitchingNinja @Twins @Braves

[Brent Niederman - Signed Rookies @SignedRookies]

Rintaro Sasaki. Top 5 pick MLB draft 2026. #rintarosasaki #mlb #NPB @Buster_ESPN @MLB @StanfordBSB @npb

[Brent Niederman - Signed Rookies @SignedRookies]

@baseballhall when will the jerseys of the new Hall of Fame class be available to purchase? Thanks!

[Brent Niederman - Signed Rookies @SignedRookies]

@Vikings @josh_dobbs1 @JoshO_3 Josh Dobbs be like

[Brent Niederman - Signed Rookies @SignedRookies]

@Vikings @josh_dobbs1 @SNFonNBC Josh Dobbs be like

[Brent Niederman - Signed Rookies @SignedRookies]

Still Josh Dobbs #nfl #vikings #joshdobbs @nfl #sundaynightfootball

[Brent Niederman - Signed Rookies @SignedRookies]

@jk_rowling Since you have all of our monies, could I have a signed book please :)

[Brent Niederman - Signed Rookies @SignedRookies]

@NFL Josh Dobbs be like

[Brent Niederman - Signed Rookies @SignedRookies]

@NFLonFOX @josh_dobbs1 be like

[Brent Niederman - Signed Rookies @SignedRookies]

@josh_dobbs1

[Brent Niederman - Signed Rookies @SignedRookies]

Josh Dobbs vs the Falcons 🤣 @nfl @Vikings #nfl #vikings

[Brent Niederman - Signed Rookies @SignedRookies]

Imagine having Jake Cave as your last resort to keep your World Series hopes alive…hell of a series to the D-Backs! #mlb #MLBPlayoffs #phillies #Diamondbacks #NLCS #Game7 #WorldSeries