The Cardinals signed Mercado to a minor-league contract Friday, John Denton of MLB.com reports.
Mercado will return to the team that drafted him back in 2013. The outfielder spent time with the Guardians and Phillies in 2022, producing a disappointing .207 average with four homers, 16 RBI, 17 runs and two stolen bases in 121 at-bats over 55 games.