A Mankato man and his 8-year-old son were seriously injured Saturday morning when their car hit a semi-truck on Highway 22 in Blue Earth County. 47-year-old Lord Baji was driving a Toyota Camry northbound on 22 near the Le Sueur County border when the car hit a southbound Freightliner semi at just before 7:30am. The Camry then spun out of control and ended up in the ditch. Baji was seriously injured and was taken to the Mankato Mayo Hospital. His 8-year-old son was also hospitalized, but his injuries are non-life threatening. The driver of the semi, 46-year-old Mario Gomez of St. Paul was not injured.