The San Francisco Giants placed right-hander Jeff Samardzija on the 10-day injured list on Saturday due to a shoulder impingement.
Samardzija had trouble getting his throwing arm loose during Friday's 7-2 loss against the Los Angeles Dodgers. He gave up six runs (five earned) and seven hits -- including three homers -- over four-plus innings.
Samardzija was slated to undergo an MRI exam on Saturday.
"Shark shared that he just had trouble getting loose and he wasn't able to rip his pitches the way he wanted to," Giants manager Gabe Kapler told reporters prior to Saturday's game versus the Dodgers. "That certainly makes an impact on a pitcher's ability to perform."
Samardzija, 35, has struggled all season and has served up six homers in just 13 2/3 innings. He is 0-2 with a 9.88 ERA in three starts and has fanned just five hitters.
San Francisco recalled left-hander Andrew Suarez to fill the roster spot. The 27-year-old Suarez is 7-15 with a 4.71 ERA in 50 appearances (31 starts) over the past two seasons for the Giants.
Samardzija is in the final season of a five-year, $90 million deal with the Giants. He was 11-12 with a 3.52 ERA in 32 starts last season.
Overall, Samardzija is 80-106 with a 4.14 ERA in 363 appearances (240 starts) in 13 seasons with the Chicago Cubs (2008-14), Oakland Athletics (2014), Chicago White Sox (2015) and Giants.
--Field Level Media