A company that evaluates and places values on trading cards accused Dallas Cowboys quarterback Dak Prescott of using a machine to sign his autograph for a memorabilia company, ESPN.com reported Wednesday.
The evaluating company, Beckett Grading Services, will not verify Prescott's signature in a recent card set.
Steve Grad, the principal Beckett authenticator, told ESPN that his company examined five autographed cards from collectors who received Prescott autograph redemptions from Panini's 2016 Prizm set.
"They had a very machine-like feel," Grad said. "You could see the starts and stops."
Based on his knowledge of the characteristics of a person's signature, Grad concluded these signatures were done by autopen, which is a machine politicians sometimes use to sign documents in bulk.
"I immediately knew they were autopen," Grad said. "I've never heard of a modern athlete doing this."
Prescott may have never seen the cards. Blank labels may be signed.
Panini requires the athlete to sign an affidavit stating that his signature is genuine when the company sends cards or memorabilia to be signed by an athlete.
Neither Prescott nor Panini officials have been contacted for a response.
Panini said in May that some of the autographed cards of Atlanta Falcons first-round draft pick Takkarist McKinley were not signed by him. Panini said it would send authentic autographs to those people who returned their signed McKinley cards.