The former California governor Arnold Schwarzenegger and his estranged wife, Maria Shriver's 13-year-old son, Christopher, is reported to be suffering from a collapsed lung, broken bones and broken ribs following a surfing accident last weekend in Malibu of California. He is currently in the intensive care unit. Sources say that the younger Schwarzenegger is doing better now, and is expected to make a full recovery. His mother has been by his side, sleeping at the hospital, while the Terminator star made frequent visits. Christopher is the youngest of the couple's four children, following Katherine, Christina, and Patrick. Shriver filed for divorce earlier this month after the actor and the former housekeeper's affair was made public, in which he fathered a child out of wedlock 14 years ago.