Palmeiro, who hasn't played major league baseball since 2005 with the Orioles, the year he became the highest-profile player at the time to be suspended for the use of steroids, thinks he can make this unlikely comeback. He is adamant he can still rake, telling The Athletic's Ken Rosenthal, "There's no doubt in my mind I can do it".
Palmeiro has put up some of baseball's best offensive numbers, 13th on the all-time home runs list with 569 and 28th on the all-time hits list with 3,020.
Would a comeback help erase that?
The 53-year-old slugger reportedly told The Athletic that he is confident he could still play and finish out his career on his own terms. "I've take care of myself really well".
The former All-Star last played for The Orioles in 2005, a season cut short after he tested positive for performance-enhancing drugs. I've been working out for years. He was surrounded by controversy after appearing before congress earlier that year and vehemently denying that he had ever used steroids. "I don't know how to say it any more clearly than that".
Palmeiro still maintains he never used steroids.
"It would be an interesting story", Baltimore general manager Dan Duquette said, ESPN reported. "If you can hit, then you can hit".
Meanwhile, Palmeiro's youngest son, Preston, is now a member of the Orioles minor league system. The 22-year-old plays for the Class-A affiliate, but dad doesn't plan on spending any time in the minors.
The oldest regularly playing position player in Major League Baseball history was Julio Franco, who was 49 when he retired in 2007.
Rafael Palmeiro is nine years older than Aaron Boone, but he's ready to come back to the big leagues.
"Maybe 12 years later, I can prove to the whole world that I didn't need anything to have a good career", he said.