Harvey, who is batting .375, hoped to return Wednesday, but the middle game of the series was postponed due to rain.
The first baseman sat out Tuesday’s opener because he was sore from his right shoulder to his right ankle after his collision with teammate Jason Grimsley. Harvey was playing first base Sunday against Boston when he and Grimsley ran into each other on a slow roller.
Both players were down on the ground for several minutes and taken to a hospital, where X-rays were negative.
“A little banged up, but I feel OK,” Harvey said Tuesday. “I’ll definitely play tomorrow.”
Harvey has a 15-game hitting streak during which he is batting .508 (30-for-59) with three homers, seven doubles and 10 RBIs.
The Royals won 4-2 Tuesday in the matchup of last-place teams in their respective leagues.
The Expos have lost three in a row and 13 of 17 overall.