The Houston Astros placed right-hander Justin Verlander on the 15-day injured list Tuesday with a right calf injury.
The move is retroactive to Monday. The team said an MRI showed no disruption to the muscle fiber.
The 39-year-old Verlander, the leading candidate for the American League Cy Young Award, sustained the injury on Sunday while running to cover first base in the third inning of his start against the Baltimore