A Mankato man has been charged after allegedly severely injuring a child. Blue Earth County court records say 39 year old Krisotpher Henderson has been charged with first degree assault. Authorities say Henderson is accused of injuring a two month old female. The court report says the female suffered non-accidental trauma, including facial bruising, intraoral bruising, fractures in both femurs, a fractured left tibia and several broken ribs.