The Dolphins waived Austin on Saturday, NFL reporter Jordan Schultz reports.
Austin signed with the Dolphins in early March. The cornerback has played in 29 career games, totalling 31 tackles (25 solo), eight passes defensed and one interception. Austin is now subject to waivers and will remain available to be claimed through Sunday's cutdown day and into Monday. If the 25-year-old goes unclaimed, he will become a free agent able to sign with any franchise's 53-man roster or practice squad.