Video:Andretti to Announce 4th Driver for 2018 by Sonoma Race

AutoRacing1.com catches up with Chief Operating Officer of Andretti Autosport Rob Edwards ahead of the 2017 IndyCar GP of Watkins Glen to talk about the teams renewal with Honda and Alexander Rossi, how many cars they plan to run in 2018 and when we might hear an announcement for their 4th driver.