On April 27, 2013, Clay signed with the Miami Dolphins as an undrafted free agent.[3] He was released from the team during final roster cuts on August 27, 2013.[4]
Coaching career
On January 27, 2014, Clay was hired as defensive quality control coach for the Philadelphia Eagles under head coach Chip Kelly.[5] He was promoted to assistant special teams coach on February 3, 2015.[6]
On January 27, 2016, it was announced that he would be the assistant special teams coach of the San Francisco 49ers.[7]
On January 29, 2021, Clay was hired as the special teams coordinator for the Philadelphia Eagles.[8] On February 17, 2024, he signed a contract extension with the Eagles.[9]