Jay Leno undergoes surgery to treat 'significant burns' following car fire

The TV host was hospitalised on Saturday after a gasoline fire broke out in his garage in Burbank, California while he was working underneath a vehicle. The 72-year-old insisted he was doing O.K. and would be back on his feet in a week or two.However, Dr Peter H. Grossman, medical director at the Grossman Burn Center in Los Angeles, said in a press conference on Wednesday that his patient's recovery may take a little longer than he anticipated.Dr Grossman revealed that Leno sustained "a mixture of deep second-degree burns and possibly some third-degree burns" to his face, hands and chest…