INDIANAPOLIS (AP) — Marcus Ericsson returned to the Indianapolis 500 with zero regrets but ended Thursday with a violent collision late in the first full day of practice.

Ericsson hit a curb with just over two hours remaining in the session, causing his car to spin and hit the wall three different times.

“Obviously it was quite a decent hit, but the safety in these cars is pretty impressive, so feeling OK,” Ericsson said. “I’m very disappointed and very sorry for my team. They’ve done a very good job and they have a lot of work ahead of them now and that’s probably the worst.

“I think we were in good shape, but obviously you have a big crash like this, it sets everything back to zero. It is what it is — we just have to bounce back.”

But before the crash, Ericsson had moved past the controversial ending to last year’s race that cost the Swede a second consecutive win in the “Greatest Spectacle in Racing.” And, he has made up with teammate Colton Herta following their spat last weekend.