Hamilton suffered a mild injury in the third inning of Tuesday's game, when he crashed into the center-field wall after chasing a drive by Toronto's Alex Rios. When he collided with the wall, Hamilton said his elbow jammed into the ribs on his left side.
Hamilton assured the problem would only keep him out of the lineup for one day.
"I tried to talk my way into the lineup, but [manager Ron Washington] made sure I was taking a break today," Hamilton said.
Hamilton said he hurt the ribs on his right side while playing in the Minor Leagues, so he expects the pain will last a couple of weeks.
"There's nothing you can do for your ribs," Hamilton said. "You just suck it up and go. You're not going to do any more damage to it, unless you run into the wall the same exact way."
Washington knows that Hamilton could have played on Wednesday and insists that the player's ribs are not the main reason for him being held out of the lineup.
"He's fine," said Washington. "Matter of fact, he came in and asked me why he's not playing.
"The ribs are not a problem. He just got a day off."
Hamilton has struggled to begin the season, batting just .231 with one home run and eight RBIs in 13 games. In the eighth inning of Tuesday's contest, he snapped an 0-for-15 slide with a single off Roy Halladay.
"I've been feeling a little better the last couple games at the plate," Hamilton said, adding that he has been looking at extensive videotape of his at-bats from last year and comparing them with tape of recent games.
David Singh is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.