Pitchers Ricky Nolasco, Carlos Marmol, Brian Wilson, Edinson Volquez and infielder Michael Young were not with the Dodgers in Spring Training.
"We've got some new guys around the infield with Michael and some different guys, so we want to make sure everybody is on the same page," Mattingly said.
The Dodgers will open the National League Division Series on Thursday in either Atlanta or St. Louis against whichever club finishes with the second-best record in the league. The Dodgers will take Monday off and then work out at Dodger Stadium on Tuesday.
Austin Laymance is an associate reporter for MLB.com. Ken Gurnick is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.