The new confirmed case is reportedly the only positive in the most recent tests.
More than half of Miami's major-league roster has now contracted the virus. Four more players tested positive Tuesday, which reportedly included infielder Miguel Rojas, who was vocal about the team playing over the weekend despite concerns surrounding the potential spread of the virus.
The Philadelphia Phillies - the Marlins' last opponent - reportedly received negative tests for all players and staff since the two teams played at Citizens Bank Park.
Major League Baseball was forced to rejig its schedule as a result of the outbreak. The Marlins won't play until at least Monday.