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GSSM
GSSM
Carlsbad, California
•grandslamsportsmemorabilia.com
Welcome to Grand Slam Sports Memorabilia. We are an online store that helps sports fans & collectors expand their passion for their teams or favorite athletes. Our high-quality autographed sports collectibles include signed jerseys, photos, balls, and helmets!
Elly De La Cruz Signed Cincinnati Reds 8x10 Photo (GT Sports)
Marcus Mariota "Heisman 14" Signed Oregon Ducks Nike Black Game Jersey (Beckett Certified)
Taylor Swift Signed "The Life of a Showgirl" Framed CD Insert Display (3)(JSA)
Cam Skattebo Signed ASU Black Jersey (Beckett)
Taylor Swift Signed With a "Heart" Framed "The Tortured Poets Department" CD Display With Disc (ACOA)
Magic Johnson Signed Wilson Indoor/Outdoor NBA Basketball (Beckett)
Taylor Swift Signed "The Life of a Showgirl" CD Insert with Case & Disc (11) (JSA)
Goose Gossage Signed 2008 ASG Baseball Inscribed "HOF 2008" (Beckett)
Jacob Misiorowski Signed LE Brewers Figurine With Original Packaging Inscribed "The Miz" (Prova)
Cristian Javier Signed Astros 8x10 Photo (GTA)
José de Paula Signed 2025 All-Star Futures Game 16x20 Photo (Beckett)
Tyreek Hill Signed Chiefs Red Jersey (Beckett)
Dwayne Bowe Signed Chiefs Career Highlight Stat Jersey (JSA)
Rashee Rice Signed Chiefs Red Jersey (PSA)
Patrick Surtain II Signed Dark Blue Broncos Jersey (JSA)
Marcus Mariota "Heisman 14" Signed Oregon Ducks Nike Green Game Jersey (Beckett Certified)
Cristian Javier "2022 WS Game 4 No Hitter" Signed Houston Astros Jersey (GT Sports)
Marshall Faulk Signed St. Louis Rams Jersey (JSA)
Jeremy Pena "22 WS MVP" Signed OML 2022 World Series Baseball (Beckett)
Cristian Javier "2022 WS Game 4 No Hitter" Signed OML 2022 World Series Baseball (GT Sports)
Sam Darnold Signed USC Trojans Jersey (Beckett)
Fernando Tatis Jr. Autographed Black Victus Game Model Bat With "Slam Diego" (Fanatics)
Jose Altuve Signed 2017 All-Star Game Baseball With "17 AL MVP" (JSA & USASM)
Jose Altuve Signed Astros Orange Striped Jersey With "17 AL MVP" (GT Sports)
Jose Altuve Signed OML Baseball With "17 AL MVP" (Beckett)
Derrick Henry Signed Titans 8x10 Photo (Beckett)
Jose Altuve Signed 2022 World Series Baseball (GT Sports)
Jose Altuve Signed Astros White Jersey With "17 AL MVP" (GT Sports)
Chris Olave Signed Ohio State Black Jersey (Beckett)
Taylor Swift Signed with a "Heart" Acoustic Guitar with "TLOAS" Insert Pickguard (JSA)
Taylor Swift Signed 38" Red "folklore" Acoustic Guitar with TS Logo (Beckett LOA)
Taylor Swift Signed Pink Acoustic Guitar with "TTPD" Insert Pickguard (PSA)
Jose Altuve Signed Astros Orange Jersey With "17 AL MVP" (GT Sports)
Aaron Donald Signed Rams Blue Jersey (JSA)
Cam Skattebo Signed ASU Jersey (Beckett)
Dan Fouts Signed Chargers 8x10 Photo (Beckett)
Troy Polamalu Signed Jersey (JSA)
Tuli Tuipulotu Signed Los Angeles Chargers Jersey (Beckett)
Taylor Swift Signed ZENY Acoustic Blonde Guitar (PSA)
Taylor Swift Signed 38" Black "folklore" Acoustic Guitar (Beckett)
LaDainian Tomlinson Signed San Diego Chargers 8x10 Photo (3) (JSA)
Sam Darnold Signed Seattle Seahawks Jersey (Beckett)
Jose Altuve Signed Houston Astros Orange Jersey (GT Sports Witness Certified)
Jeremy Pena "2022 WS MVP" Signed Victus Game Model Baseball Bat (Beckett)
Chris Olave Signed New Orleans Saints Jersey (Beckett)
Saquon Barkley Signed Blue Giants Jersey (Beckett)
Juan Soto Signed New York Mets Jersey (Beckett)
Taylor Swift Signed 38" "Eras Tour" "TLOAS #1" Acoustic Guitar (JSA)
Mason Miller Signed 2026 All-Star Game Baseball (Beckett & Prova)
Mason Miller Signed 2026 All-Star Game Baseball Inscribed "Are You Ready?" (Beckett & Prova)
Mason Miller Signed 2026 All-Star Game Baseball Inscribed "The Reaper" (Beckett & Prova)
Dave Winfield Signed OML Baseball (PSA)
Derrick Henry Signed Alabama 8x10 Photo (Beckett & Henry)
Cam Skattebo Signed ASU Jersey (JSA)
Taylor Swift Signed with a "Heart" Acoustic Guitar with "TLOAS" Insert Pickguard (JSA)
Fernando Tatis Jr. Signed White Padres Jersey (1) (Beckett)
Pete Rose Signed Cincinnati Reds Career Stat Gray Jersey (JSA COA)
Taylor Swift Signed "The Tortured Poets Department" 11x14 Matted CD Insert Display (PSA)
Taylor Swift Signed with a "Heart" "The Life of a Showgirl" Framed CD Album Display (Beckett) (2)
Taylor Swift Signed 38” Zeny Acoustic Blue Guitar (PSA)
Dave Winfield Signed Louisville Slugger Baseball Bat with Multiple Inscriptions (JSA)
Taylor Swift Signed 38” Acoustic Purple Guitar (JSA Hologram)
UV Protected Baseball Display Cube
George Springer "17 WS MVP" Signed 2017 World Series 8x10 Photo (Beckett Certified)
Taylor Swift Signed Acoustic Guitar with "TTPD" Insert Pickguard (JSA)
Taylor Swift Signed with a "Heart" Acoustic Guitar with "TLOAS" Insert Pickguard (JSA)
Taylor Swift Signed 38" "Eras Tour" "TLOAS #3" Acoustic Guitar (JSA)
Taylor Swift Signed Ashthorpe 38" "Lover" Guitar (ACOA)
Taylor Swift Signed 38" "Eras Tour" "TLOAS #4" Acoustic Guitar (JSA)
Matt Carpenter Signed OML Baseball (Fanatics & MLB)
Jake Peavy Signed San Diego Padres White Jersey (Sports Integrity)
Trevor Hoffman Signed White/Orange San Diego Padres Jersey (Beckett)
Taylor Swift Signed with a "Heart" Acoustic Guitar with "TLOAS" Insert Pickguard
Trevor Hoffman Signed White San Diego Padres Jersey (Beckett)
Antonio Gates Signed Chargers 8x10 Photo (PSA)
LaDainian Tomlinson Signed San Diego Chargers 8x10 Photo (3) (PSA)
Nolan Arenado Signed "The Lou" Jersey (Authentic Ink)
Taylor Swift Signed Framed "Folklore" CD Album Cover Display With Disc (2) (JSA)
Taylor Swift Signed 17x22 "Folklore" CD Album Insert Framed Display With Disc (JSA)
Ronald Acuna Jr. Signed Jersey Inscribed "40/70 Club" (Beckett & Acuna Jr.)
Oneil Cruz Signed Jersey Inscribed "Cruz Misslie" & "El Mono" (JSA)
Yordan Alvarez Signed Jersey Inscribed "2019 AL. ROY" (AIV)
Tim Hardaway, Chris Mullin & Mitch Richmond Signed Jersey Inscribed "HOF 2022", "HOF 2011" & "HOF 2014" (Beckett)
Jose Altuve Signed 2022 World Series Baseball Inscribed "22 WS Champs" (Beckett)
Gleyber Torres Signed Marucci Player Model Baseball Bat (Beckett)
Alex Bregman Signed 2022 World Series Baseball (Beckett)
Rashaad Penny Signed Black Aztecs Jersey (Beckett)
Fernando Tatis Jr. Signed Rawlings Pro Black Baseball Bat (Beckett Hologram)
Fernando Tatis Jr. Signed Rawlings Pro Black Baseball Bat (JSA & USA SM)
Taylor Swift Signed "The Life of a Showgirl" Horizontal Framed CD Insert Display (2) (PSA)
Pete Rose Signed "Cincinnati" Jersey (JSA)
Chuck Muncie Signed Chargers 8x10 Photo (JSA)
Pete Rose Signed "Hit King" Jersey (JSA & Rose)
Taylor Swift Signed with a "Heart" Acoustic Guitar with "TLOAS" Insert Pickguard
Philip Rivers Signed San Diego Chargers 8x10 Photo (JSA)
LaDainian Tomlinson Signed San Diego Chargers 8x10 Photo (2) (Beckett Witness Certified)
Elly De La Cruz Signed Cincinnati Reds Jersey (Beckett Witness Certified)
Rocky Bleier “4x SB Champs” Signed Pittsburgh Steelers Jersey (2) (Beckett Witness)
LaDainian Tomlinson "HOF 17" Signed San Diego Chargers 8x10 Photo (1) (Beckett Witness Certified)
Tommy Lasorda Signed Dodgers 8x10 Photo Inscribed "Good Luck" (JSA)
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