Ajayi missed a lot of games in 2015 due to an injury and sat behind RB Lamar Miller .
Miami Dolphins RB Jay Ajayi : Ajayi could be the feature back in the Dolphins backfield .
Ajayi missed a lot of games in 2015 due to an injury and sat behind RB Lamar Miller .
Miami Dolphins RB Jay Ajayi : Ajayi could be the feature back in the Dolphins backfield .