Repsol Honda's Nicky Hayden has pulled out of the this afternoon's Misano MotoGP race because the heel he injured during a supermoto race a month ago is proving troublesome.

“This wasn’t an easy decision. I love to race and the racer in me wanted to race, but in this kind of situation it’s better to listen to the experts," said Hayden.
"The heel got worse as the weekend went on. I was sixth on Friday morning but I kept working my way backward after that, the more I rode, the more strength I lost in the foot. I felt I could have salvaged a little something out  of today’s race but that was just going to make  things worse for Indy and for the rest of the season.”
A chunk has been knocked out of the heel bone, and it isn't just cracked as previously thought.