Orioles manager Buck Showalter made the announcement on Tuesday morning.
Markakis was scratched from the Orioles lineup on March 3 with neck spasms, and had an MRI on Monday. He was told he'd miss two weeks, but since he's already rested it for a week, Markakis should be ready to play next week.
Showalter says Markakis has returned to Baltimore to see a spine specialist.
In 2012, Markakis had surgeries on his abdomen, right hand and left thumb. He has played in an average of 160 games a year in his previous five seasons.