Andretti Autosport has added Simona de Silvestro to its lineup for this weekend's race in Louisiana. The Swiss-born de Silvestro ran IndyCar's season-opening race at St. Petersburg for Andretti and finished 18th. Andretti later added her as a fifth entry for the Indianapolis 500 driving the No. 29 TE Connectivity Honda De Silvestro left IndyCar last season to become a test driver in Formula One, but her funding package fell apart and she's trying to put together a return to full-time IndyCar racing. More...