"We're addressing it now," Reds manager Dusty Baker told the Cincinnati Enquirer 's John Fay following Tuesday's 16-5 loss to the Giants. "It seemed like he was getting hurt on his slider. He's rolling it up there. It's not sharp."
Leake made his second relief appearance of the season in the game, allowing six hits and six runs while retiring just a single Giants batter. Leake gave up two home runs, a two-run shot to Juan Uribe and a three-run homer to fellow rookie Buster Posey.
Leake's ERA jumped from 3.85 to 4.23 with the appearance.
Leake was taken out of the rotation following his Aug. 14 start against the Marlins, when he picked up his eighth win of the season. Because he'd thrown 135 2/3 innings at that point, the Reds moved him to the bullpen to protect the 22-year old's arm.
He made his first relief appearance Saturday in Los Angeles, allowing two runs on five hits in 2 1/3 innings.
For the season, he's now thrown 138 1/3 innings.
The Reds' first-round pick in 2009, Leake skipped the minor leagues, making the rotation out of spring training. Leake won his first five decisions, netting a 2.22 ERA in his first 11 starts.
In his next 11 starts, he went 3-4 with a 5.60 ERA.
Leake threw 142 innings at Arizona State, plus 19 2/3 innings in the Arizona Fall League.
When rosters expand in September, the Reds could shut Leake down as a pitcher, but still use him as a pinch-hitter and pinch-runner. As impressive as his stats as a pitcher are for his rookie season (91 strikeouts 51 walks), Leake was even better at the plate. In 58 plate appearances, Leake hit .348/.423/.370 with three RBI and six sacrifices.
Fellow rookie Travis Wood was battered about by the Giants, allowing seven runs on seven hits in four innings. The team has Aaron Harang close to returning from a rehab assignment, although the team had been considering using him out of the bullpen. Left-hander Matt Maloney is currently in Triple-A, but is 0-2 with a 3.09 ERA in two starts for Cincinnati this season.
-- C. Trent RosecransFor more baseball news, rumors and analysis, follow @cbssportsmlb on Twitter or subscribe to the RSS feed .