Nick Kyrgios: Abdominal strain 'not too serious'

(Photo credit: Mike Frey-Imagn Images)
An abdominal strain could cause Nick Kyrgios to withdraw from the Australian Open, scheduled to begin Sunday.

Kyrgios said the strain is "not too serious" and he will try to play in Melbourne.

Still, he pulled out of an exhibition match with Novak Djokovic, citing the injury.

"I've had an ultrasound on my abdominal and have a grade 1 strain," he posted to Instagram, also announcin