Ruiz, who also spent time on the disabled list in 2010 because of a concussion, did not travel with the team to Florida.
Backup catcher Wil Nieves is recovering from his strained right quadriceps in Clearwater, Fla. He is eligible to be activated Friday, which remains a possibility, although he will need to play rehab games first.
Todd Zolecki is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.