 On October 18, 2015, during the Steelers' Week 6 game against the Arizona Cardinals, Jones made his NFL debut, replacing an injured Vick in the third quarter with the Steelers down 10–6.He finished the game with 168 passing yards and two touchdowns to Martavis Bryant, as he led the Steelers to a 25–13 comeback win.Jones played in seven games, starting two, in 2015, completing 32-of-55 passes for three touchdowns and four interceptions.