Kiefer: I'm getting too old for 24

Kiefer Sutherland fears he is too old to continue '24'.

The 45-year-old star isn't sure he can sustain playing action man Jack Bauer in the hit counter-terrorism drama - which was recently revived for a new season, '24: Live Another Day', three years after it initially ended - and worries his body can't keep up with the death-defying stunts required for the role.