Saturday's day off was just a standard break because of a day game after a night game, but Sunday's reason was different.
Dodgers manager Joe Torre told reporters before Sunday's game that Loney went home early Saturday because he suffered from flu-like symptoms.
"He's a little washed out today," Torre said. "He could play. If we needed him, we will use him."
Mark Loretta started in place of Loney for a second straight day. Loretta went 1-for-3 on Saturday in the Dodgers' 2-0 win over the Cubs.
Loretta enters Sunday's game 4-for-17 with one home run, two RBIs, four walks and four strikeouts in his career against Cubs starter Ryan Dempster.
Loretta has made 25 starts this season: 11 at first base, 10 at third and four as designated hitter.
Loney is batting .277 on the season with seven home runs and 71 RBIs.
David Ely is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.