Sardinas had a key error on Saturday night, dropping a relay from Odor on a potential double play ball in the seventh inning. But he also had a one-out single in the ninth and ended up scoring the go-ahead run.
"They don't stop playing," Washington said. "That's what I like about both of them."
Washington is not concerned about Sardinas at shortstop even though he has three errors in six games -- including three starts -- over 32 innings.
"The kid can play shortstop," Washington said. "They work on that double play every single day. He took for granted the throw would be where it was supposed to. It was off and he didn't make the adjustment. He just has to slow it down and make sure it's there."
Washington originally had Donnie Murphy at third base so that Adrian Beltre could be used at designated hitter. But the manager switched Beltre back to third and Murphy to DH minutes before first pitch.
T.R. Sullivan is a reporter for MLB.com Read his blog, Postcards from Elysian Fields and follow him on Twitter @Sullivan_Ranger. This story was not subject to the approval of Major League Baseball or its clubs.