Our 2 year old son broke his left tibia after the falcon door automatically closed on his left foot/leg and it got caught between the door and his car seat. We believe he had his leg dangling off the car seat when we closed the door from the front command station. The door sensor did not stop or give any warning that there was anything in the way. He was seen in the emergency department after the incident and is in a full leg cast for at least 4 weeks. This is a major safety risk for other children/people if the doors cannot sense small limbs and stop appropriately. The car/door is available for inspection upon request. We have not contacted Tesla yet about this but will be calling them very soon. The vehicle has not been inspected by anyone yet since the incident. There were no warnings prior to the incident occurring.