CINCINNATI -- Reds starting pitcher Sonny Gray exited Thursday’s game vs. the Marlins following four scoreless innings because of a left calf contusion.

Leading off the top of the second inning for Miami, Miguel Rojas smacked a pitch that came back hard to the mound and ricocheted off Gray's leg. Gray didn’t immediately see the ball behind him before retrieving it and making a late throw to first base. Rojas reached safely with a single.

Showing signs of discomfort, Gray was visited at the mound by head trainer Steve Baumann and manager David Bell. But following a warmup pitch, he was able to continue and retired the next eight batters in a row.

Beginning with the top of the fifth inning, Gray was replaced by reliever Robert Stephenson after he notched six strikeouts with no walks and two hits during his third start of the season.

There is no word on if Gray will miss any time. His next scheduled start is on Wednesday vs. the Dodgers in Los Angeles.