Martinez was unable to participate in Friday's opening day of summer camp because of a pending COVID-19 test, Derrick Goold of the St. Louis Post-Dispatch reports.
The veteran right-hander was one of four players -- Genesis Cabrera, Ivan Herrera and Elehuris Montero being the other three -- that had been in the Dominican Republic during the shutdown and was awaiting the results of his test. Martinez and the rest of the group were tested Thursday morning, approximately a day later than originally planned because of a flight delay. Assuming a clean bill of health, Martinez may have his test results back in time to participate in Saturday's workout. If that happens, he'll begin his quest to tighten his grip on a rotation spot.