Mercer announced Tuesday via his personal Twitter account that he has retired from professional baseball.

Mercer (calf) was reinstated from the 10-day injured list Monday, Mark Zuckerman of MASNSports.com reports.

Mercer (calf) will begin a rehab assignment at Double-A Harrisburg on Wednesday, Mark Zuckerman of MASNSports.com reports.

Mercer was placed on the 10-day injured list Saturday with a left calf strain, Jesse Dougherty of The Washington Post reports.

Mercer (quadriceps) was activated from the 10-day injured list Friday, Jesse Dougherty of The Washington Post reports.

Mercer (quadriceps) did some base running Friday for the first time since suffering the right quad strain, Jesse Dougherty of The Washington Post reports.

Mercer (quadriceps) isn't starting Thursday's game against the Dodgers, Mark Zuckerman of MASNSports.com reports.

Mercer went 2-for-5 with a solo homer and two runs scored in Wednesday's win over Tampa Bay. Per Matt Weyrich of NBC Sports Washington, manager Davey Martinez said that Mercer is dealing with cramps in his quadriceps and will be further evaluated Thursday.

Mercer (lips) is starting Wednesday's game against the Rays.

Mercer may only be available in an emergency Thursday at Miami after receiving three stitches in his lip, Maria Torres of The Athletic reports.