From IndyCar:

NEWS: Nolan Siegel has not been cleared by INDYCAR Medical and will not compete today at Iowa Speedway.

Arrow McLaren will not run the No. 6 entry in Race 2.

Statement from Arrow McLaren:

Siegel hit the wall hardin turn on.lap 248 in Saturday’s race. The impact necessitated a red flag for wall repair.

IndyCar will.leave Siegel’s 13th starting spot open on the grid.

Siegel will receive 3 points for today’s race by rule.