"In New York, I dove for a ball, and since then it hurts to throw and extend, and it hurts when I hit and try to drive the top hand down," Arenado said. "When I went into today's game, I didn't feel very good. Then I dove for that ball and it hurt a little bit.
"I think I bruised my ribs a little bit. If I'm still hurting tomorrow I'll have an X-ray to see where we are. I don't think it's that bad. I'll be fine. It's just a matter of rest."
A candidate to win his second Rawlings Gold Glove Award, Arenado went 0-for-2 Sunday and is batting .287 with 18 home runs and 61 RBIs this season.
Rafael Ynoa replaced Arenado.
Thomas Harding is a reporter for MLB.com. Read his blog, Hardball in the Rockies, follow him on Twitter @harding_at_mlb, and like his Facebook page, Thomas Harding and Friends at www.Rockies.com. This story was not subject to the approval of Major League Baseball or its clubs.