Donkey!

Defending Moto GP champion Valentino Rossi, always game to break out a new helmet design should inspiration strike (see also here), was sporting a donkey face on his helmet this weekend in the San Marino GP, which he won.

I missed any mention of the helmet by the announcers, and thought maybe it was a rabbit on the helmet. But a note on the above photo points out that Rossi was calling himself a donkey — as opposed to his regular nickname of "The Doctor" — for falling on his own at the previous race in Indianapolis.

Photos above and below by ialla.