Manager John Gibbons declined to specify a reason for the late move, but Rasmus was more forthcoming when approached by reporters.
"I was late getting here to the field," Rasmus admitted. "Wasn't here when I was supposed to be, and they punished me, as they should have.
"No excuse. Just got caught up eating lunch with the family, got caught up in a little traffic and didn't make it on time. It is what it is."
Rasmus did eventually get into the game as a defensive replacement in the seventh inning. He later had an at-bat but struck out in his only plate appearance.
Gregor Chisholm is a reporter for MLB.com. Read his blog, North of the Border, and follow him on Twitter @gregorMLB. This story was not subject to the approval of Major League Baseball or its clubs.