Australia 's captain Steven Smith beat encroaching bad weather by a matter of minutes to post his 17th Test hundred before a monsoonal downpour all .
Australia 's captain Steven Smith ensured a drawn Boxing Day Test at the MCG .
Australia 's captain Steven Smith beat encroaching bad weather by a matter of minutes to post his 17th Test hundred before a monsoonal downpour all but ensured a drawn Boxing Day Test at the MCG .