Lorenzo, Stoner exchange helmets

Before leaving the paddock at Valencia for the final time as a rider, former double MotoGP champion Casey Stoner met with reigning double champion Jorge Lorenzo to exchange helmets.

Lorenzo, who has raced Stoner in all three grand prix classes, posted this picture on his official Facebook page, with the message:

"Hi friends! A s you may know, this year one of the great ones has retired, Casey Stoner. Here you have a picture of the exchange of helmets in order to always remember our battles on the circuit. My best wishes, Casey"