MIAMI – Marlins ace Jose Fernandez has a right bicept sprain.
Fernandez is expected to put on the 15-day disabled list.
The Marlins ace was flown back to South Florida after leaving his start against the Braves on Friday night.
Fernandez had thrown fewer than 80 pitches and lasted just 5 innings.
Fernandez has been recovering from Tommy John surgery to his elbow.
With the Marlins having the worst record in baseball, the team will likely be cautious with their prized pitcher.