Rivero allowed no hits or walks in a scoreless inning Friday. He failed to record a strikeout and plunked one batter.

After compiling seven saves and pitching in parts of 13 games in August, Rivero has collected only two saves in five September appearances. Leads have been hard to come by for Pittsburgh in recent times, reducing Rivero's opportunities. On the bright side, the lefty's ERA is still a sparkling 1.54 despite his pedestrian run since the beginning of August.

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