In his first at-bat, Beltre singled for his 2,943rd career hit, tying him with Frank Robinson for 34th all-time.
Beltre had been out all season with a right calf strain, after also having issues with his left calf during spring training.
Texas waited until after Beltre went through infield drills and batting practice before posting its lineup about 90 minutes before the game.
Joey Gallo crushed his team-leading 16th home run on Monday. He played as the primary third baseman in Beltre’s absence. Against the Rays, Gallo started at first base, replacing Mike Napoli, who had some tightness in his back.