Mario Diaz Autographs
Mario Diaz is a former professional baseball player who had an impressive career that spanned for almost a decade. He was born on January 10, 1965, in Humacao, Puerto Rico. Diaz began his baseball career in his hometown by playing for the Little League teams. He then went on to play for the local high school team before getting drafted by the Kansas City Royals in the third round of 1983 amateur draft.
Diaz made his Major League debut on June 26, 1987, with the Royals. As a utility infielder, Diaz played for five different teams during his career, including the Royals, the Texas Rangers, the Philadelphia Phillies, the Cincinnati Reds, and the Seattle Mariners. Throughout his career, Diaz was known for his defensive abilities, particularly his strong arm and accurate throws. He appeared in 450 games, hitting .248 with 4 home runs and 94 RBI.
After his baseball career, Diaz retired and focused on coaching. He has coached little league teams in Puerto Rico and has also served as a scout for the Los Angeles Dodgers. His legacy as a baseball player and coach continues to inspire young players in his Puerto Rican community, and his contributions to the sport will forever be remembered. Today, Diaz is still involved with baseball, supporting and advising young players in his community who aspire to follow in his footsteps.
Read more about Mario Diaz on Wikipedia
Affiliate disclosure: When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Traded items with a signature of Mario Diaz
The most expensive item with a signature of Mario Diaz (Mario Diaz Be Spent Signed PB 2015 VG) was sold in September 2025 for $44.47 while the cheapest item (MARIO DIAZ SIGNED CARD AUTO MLB MARINERS PUERTO RICO FLEER) found a new owner for $0.99 in February 2022. The month with the most items sold (4) was May 2025 with an average selling price of $9.88 for an autographed item of Mario Diaz. Sold items reached their highest average selling price in April 2013 with $29.99 and the month that saw the lowest prices with $0.99 was February 2022. In average, an autographed item from Mario Diaz is worth $3.41.
Most recently, these items with a signature of Mario Diaz were sold on eBay - click here for more items.
| Picture | Item Title | Price | Store |
 | 1988 Fleer Update - Mario Diaz #U-59 Glossy RC Signed Autographed Card | $4.25 |  |
 | 1989 Topps #309 Mario Diaz In Person Signed Auto 62895 | $6.44 | |
| 1989 Topps #309 Mario Diaz SIGNED Seattle Mariners | $5.39 | |
| 1989 Upper Deck Baseball #318 Mario Diaz Signed Autograph (no COA) | $12.95 | |
| 1990 Topps - Mario Diaz #781 AUTO AUTOGRAPHED SIGNED | $15.10 | |
| 1991 Leaf Autographed Mario Diaz Texas Rangers | $24.99 | |
 | 1993 Donruss MARIO DIAZ Signed Card autograph auto MARINERS RANGERS | $7.28 | |
| 1994 Fleer #305 Mario Diaz (IP AUTO - SIGNED) | $4.99 | |
| Mario Diaz Baseball Signed Index Card Auto Autograph (no COA) *f1 | $12.95 | |
| Mario Diaz Florida Marlins Personally Autographed Card | $3.25 | |
| Mario Diaz Seattle Mariners Autographed Signed 1990 Topps - #781 | $14.99 | |
| Mario Diaz Signed 1992 Donruss #149 Card Texas Rangers Auto AU *Autograph Den* | $6.05 | |
| Mario Diaz Signed 1992 Donruss #149 Card Texas Rangers Auto AU Autograph Den | $1.51 | |
| Signed Autographed 1989 Upper Deck Mario Diaz #318 | $6.80 | |
| VINTAGE AUTOGRAPHED MARIO DIAZ 1990 TOPPS CARD #781 ON CARD | $1.99 | |
