The 31 year-old Ohlendorf is 2-0 with one hold and a 1.85 ERA (7 ER/34.0 IP) in 10 games/two starts in his first season with the Nationals. In two spot starts (win on June 12 at Colorado, no-decision on July 26 vs. New York Mets) with Washington this season, Ohlendorf is 1-0 with a 1.38 ERA (2 ER/13.0 IP).
He posted a 5.14 ERA (4 ER/7.0 IP) during two rehab assignments, one apiece with Triple-A Syracuse (August 10) and Single-A Potomac (August 16), since being placed on the Disabled List on August 4.
Ohlendorf is 20-32 with a 4.87 ERA in 118 games/75 starts spanning seven seasons with Washington, San Diego, Pittsburgh and New York (AL).
Krol, 22, went 1-1 with one hold (June 12 at Colorado) and a 3.24 ERA in 27 appearances in his first big league stint with the Nationals.