Dolphins promote Isaako Aaitui from practice squad

The Dolphins signed nose tackle Isaako Aaitui from their practice squad on Saturday, the club said. Aaitui, 26, was signed to the Dolphins’ practice squad on Sept. 17. He had a stint with the Saints earlier this year. Aaitui signed with the Dolphins as a undrafted free agent in 2011 and spent most of the…