"It's not a big deal at all," he said Friday.
Trumbo went 1-for-4 in the first two games of the spring with two nice catches in left field.
"He's a little sore today, so we don't want that to go the wrong way," D-backs manager Kirk Gibson said. "We've got a lot of games to play."
Steve Gilbert is a reporter for MLB.com. Read his blog, Inside the D-backs, and follow him on Twitter @SteveGilbertMLB. This story was not subject to the approval of Major League Baseball or its clubs.