Orioles right fielder Nick Markakis, who has been bothered for months by what he thought was a deep bone bruise in his abdomen, had surgery on Thursday to repair his rectus abdominis.
The muscle is more commonly known as the "six-pack" muscle.
The tear was considered extensive, yet Markakis is hopeful he will be ready to play by Opening Day.
Markakis Has Surgery For Torn Muscle