Martinez has officially been cleared of COVID-19 and is reporting to summer camp Tuesday, Derrick Goold of the St. Louis Post-Dispatch reports.
The 28-year-old was absent for the initial stages of workouts while awaiting his COVID-19 test results, but he joined his teammates Tuesday and threw a bullpen session. Martinez is likely destined to operate as the Cardinals' fifth starter, but depending how things progress in camp the team could also elect to shift him back to the bullpen, especially if Giovanny Gallegos' travel delay puts the closer's availability for Opening Day in question.