http://espn.go.com/racing/story/_/id/7140167/marco-simoncelli-24-dies-crash-motogp-malaysian-race
SEPANG, Malaysia -- Italian rider Marco Simoncelli died of chest, head and neck injuries Sunday after crashing and being hit by two other riders at the Malaysian MotoGP motorcycle race. He was 24.
Race organizers said Simoncelli was sent to the medical center at the Sepang circuit for treatment but efforts to revive him were unsuccessful.
"He was already unconscious when the medical team arrived," said MotoGP medical director Michele Macchiagodena. "We attempted to resuscitate him but failed. He died 45 minutes later.
One of the two riders to strike him was his close friend Valentino Rossi. I can't imagine what he's feeling right now.
What you suggested is most likely what is going on.