Cal Raleigh Signed Seattle Mariners Teal Nike Jersey Fanatics & MLB Authenticated

Add the signature of the most historically productive catcher in a single season in baseball history to your collection with this Cal Raleigh Autographed Seattle Mariners Teal Nike Baseball Jersey. In 2025, Cal Raleigh — nicknamed "Big Dumper" by Seattle fans — hit 60 home runs, becoming the seventh player in MLB history to reach the mark and setting single-season records for catchers, switch-hitters, and Mariners players simultaneously MLB. No catcher in the history of the sport had ever come within twelve home runs of what Raleigh did in 2025. The official Mariners white Nike jersey signed by the man at the center of the most power-charged individual catcher season the sport has ever recorded is the most specific active player signed piece available in Mariners memorabilia.

This official Seattle Mariners Teal Nike baseball jersey, size L, has been hand-signed by Cal Raleigh with a bold, clean autograph. Authentication is provided by Fanatics Authentic with their tamper-proof hologram, and the jersey also carries the official Major League Baseball serial numbered hologram — dual authentication from both the third-party authenticator and the league itself.

Product Highlights

• Hand-signed by Cal Raleigh — "Big Dumper," Seattle Mariners catcher, 2025 AL All-Star
• Official Seattle Mariners Teal Nike baseball jersey, size L
• Dual authenticated: Fanatics Authentic hologram + official MLB serial numbered hologram
• 60 home runs in 2025 — seventh in MLB history to reach 60; single-season records for catchers, switch-hitters, and Mariners players MLB
• AL Gold Glove, MLB Platinum Glove, AL Silver Slugger — the most complete single-season award sweep by a catcher in recent Mariners history MLB
• 9.1 fWAR in 2025 — third-highest by a catcher in MLB history, behind only Buster Posey (2012) and Johnny Bench (1972) MLB
• Signed through 2030 on a six-year, $105 million extension — the Mariners' long-term commitment to the franchise's most historic offensive performer Baseball-Reference.com
• Backed by our Lifetime Authenticity Guarantee

Three Records, One Season — The 2025 Historic Chapter

What Raleigh produced in 2025 was not merely a great season — it was the simultaneous breaking of three separate MLB records that had stood for decades. His 49th home run on August 24 against the Athletics set the MLB record for most by a catcher in a season, surpassing Salvador Perez's 48 for the 2021 Kansas City Royals. Medium His 55th home run on September 16 at Kansas City set the MLB record for most by a switch-hitter in a season, surpassing Hall of Famer Mickey Mantle's 54 for the 1961 New York Yankees. Medium His 57th home run on September 20 in Houston set the Mariners franchise record, surpassing Hall of Famer Ken Griffey Jr.'s 56 from both 1997 and 1998. Medium He finished with 60 — the seventh player in MLB history to reach the mark, alongside Ruth, Maris, McGwire, Sosa, Bonds, and Judge. MLB The white Mariners jersey signed by Raleigh is the piece that connects the collector to the player who broke Perez's record, then Mantle's, then Griffey's — all in the same season.

The Complete Player — Defense, Leadership, Hardware

The 60 home runs are the headline. The defensive career they are attached to is what makes Raleigh historically exceptional rather than merely statistically extraordinary. On top of his offensive production, Raleigh allowed zero passed balls in 2025 and nailed 21 of 99 stolen base attempts from his position behind the plate. Sports Illustrated He won the AL Gold Glove as the best defensive catcher in the American League and then won the MLB Platinum Glove as the best defensive player in baseball at any position — the first Mariner in franchise history to receive the Platinum Glove honor. MLB His 9.1 fWAR ranked second in all of baseball in 2025, behind only Aaron Judge Medium — the most complete measure of offensive and defensive combined value confirming that Raleigh's 2025 was one of the greatest individual baseball seasons produced by a catcher in the sport's history.

Dual Authentication — The Most Complete Verification Available

This jersey carries two independent authentication credentials: the Fanatics Authentic tamper-proof hologram from one of the most trusted names in sports memorabilia authentication, and the official Major League Baseball serial numbered hologram — the league's own authentication seal applied to signed pieces produced through official MLB licensing channels. For collectors who want the most comprehensively verified signed baseball jersey available, the dual Fanatics-plus-MLB authentication provides both third-party expert verification and league-level official documentation in a single piece.

Authenticity

This jersey is certified by Fanatics Authentic with a tamper-proof hologram and by Major League Baseball with an official serial numbered hologram. Both verification credentials are affixed directly to the jersey.

Specifications

Authenticity Guarantee

Every signed piece at GameDay Sports Memorabilia is backed by our Lifetime Authenticity Guarantee. If your item is ever determined to be inauthentic, we will replace or refund it — no questions asked.