WASHINGTON -- The Giants have scored just 21 runs in 10 games since the All-Star break, so they shook things up Monday.

Outfielder Roger Kieschnick and first baseman Brett Pill were called up from Triple-A Fresno, replacing outfielder Kensuke Tanaka and infielder Tony Abreu. Tanaka was optioned back to Triple-A, and Abreu was put on the disabled list with left knee bursitis.

Kieschnick, 26, will be making his major league debut whenever he takes the field. He was hitting .273 with 13 homers, nine triples and 27 doubles at Triple-A. Pill has seen time in the big leagues each of the last three seasons and was hitting .344 in Fresno with 18 homers.

San Francisco’s Brett Pill (6) hits a single to bring in 3-1 run by Joaquin Arias (13) against Colorado Rockies in the eight inning at  AT&T Park in
San Francisco's Brett Pill (6) hits a single to bring in 3-1 run by Joaquin Arias (13) against Colorado Rockies in the eight inning at AT&T Park in San Francisco, Calif., on Monday, May 14, 2012. (Josie Lepe/Staff) ( Josie Lepe )

Tanaka gave the Giants a brief jolt when he was recalled, but he was hitting just .267 with no extra-base hits in 15 games. The Japanese veteran had a mixed day; earlier Monday, he visited the White House.