From Downward Dog, lift your right leg back behind you to come into Three-Legged Dog.
Bring your right foot to the outside of your right hand to come into Lizard pose. Keep both hands flat on the ground, and balance on your left toes.
Set your left knee down, and extend your left foot so the top of your foot is against the ground.
Walk your hands backward, and shift your hips backward until they're just above your left foot. You should feel a stretch through your right hamstring. If you can't reach the ground with your hands, place your hands on yoga blocks or books.
Hold for a few seconds.
Slide your hips and hands forward to come back to Lizard pose.
Push into your palms, flex your left foot, and lift your body, pushing your hips back and extending your right leg in the air to return to Three-Legged Dog.
Place your right foot on the ground to come back to Downward Dog.