Duane Chapman, a.k.a. Dog the Bounty Hunter, was rushed to UCLA Medical Center this weekend due to the extreme pain in his left leg, according to reports.
A source close to the reality star and real-life fugitive hunter says that he may have a blood clot behind his knee, an injury stemming from kicking in a door.
His muscle separated from the bone and caused internal bleeding, sources report. The injury grew worse as Dog has been traveling during the past week.
On Thursday, Dog and his wife Beth were seen having lunch in Malibu, where Dog appeared to be happy and healthy as he sat with his arms around Beth.
But by Saturday, the injured muscle was so inflamed that Dog needed to go to the emergency room. He will return to the hospital for more treatment.
Dog and Beth, who live in Honolulu, have been in Los Angeles for several TV and radio appearances promoting the seventh season of their hit show.