J.D. Martinez, the former Met and current free agent, isn't officially retired, but he seems to have his post-baseball life ready to go, having signed a deal with a pickleball equipment company with the intention of going pro once he leaves baseball.

J.D. Martinez hasn’t officially retired from baseball, but he’s already planning a post-retirement pivot to pickleball.

W ord surfaced last week that veteran designated hitter and six-time All-Star slugger J.D. Martinez wants to continue his baseball career. That isn't stopping him from making plan