Gardner was sore a day after he had four at-bats in a three-inning simulated game and was being kept off the field Monday. The speedy outfielder has already had two setbacks in his recovery from a strained elbow that has sidelined him since April 18.
Gardnerâ€™s agent, Joe Bick, told Newsday the outfielder may have an MRI on Tuesday.
â€śWhy it wonâ€™t go away is a mystery to better medical minds than mine,â€ť Bick told the paper. â€śThree of the most respected doctors in the country agreed on the diagnosis and the treatment, and it still hasnâ€™t gone away. Certainly, (Gardnerâ€™s) level of frustration is extremely high.â€ť