Ducati MotoGP rider Nicky Hayden of the U.S. rides his motocycle during the second free practice of the Valencia Motorcycle Grand Prix at the Ricardo Tormo racetrack in Cheste, near Valencia November 9, 2012. REUTERS/Heino Kalis (SPAIN - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the United States rides during qualifying ahead of the Australian Motorcycle Grand Prix at Phillip Island October 27, 2012. REUTERS/Brandon Malone (AUSTRALIA - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. takes a corner during qualifying ahead of the Australian Motorcycle Grand Prix at Phillip Island October 27, 2012. REUTERS/Brandon Malone (AUSTRALIA - Tags: SPORT MOTORSPORT) 

Ducati rider Nicky Hayden of the U.S. rides during a free practice session ahead of the Australian Motorcycle Grand Prix at Phillip Island October 27, 2012. REUTERS/Brandon Malone (AUSTRALIA - Tags: SPORT MOTORSPORT) 

Ducati rider Nicky Hayden of the United States rides in pit lane during a free practice session ahead of the Australian Motorcycle Grand Prix at Phillip Island October 26, 2012. REUTERS/Brandon Malone (AUSTRALIA - Tags: SPORT MOTORSPORT) 

Ducati rider Nicky Hayden of the United States takes a corner during a free practice session ahead of the Australian Motorcycle Grand Prix at Phillip Island October 26, 2012. REUTERS/Brandon Malone (AUSTRALIA - Tags: SPORT MOTORSPORT) 

Yamaha MotoGP rider Andrea Dovizioso of Italy takes a corner ahead of Ducati rider Nicky Hayden of the United States during a free practice session ahead of the Australian Motorcycle Grand Prix at Phillip Island October 26, 2012. REUTERS/Brandon Malone (AUSTRALIA - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. smiles as he prepares for a free practice session ahead of the Malaysian Grand Prix in Sepang October 20, 2012. REUTERS/Bazuki Muhammad (MALAYSIA - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. prepares for a free practice session ahead of the Malaysian Grand Prix in Sepang October 19, 2012. REUTERS/Bazuki Muhammad (MALAYSIA - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. (L) listens to his crew member as they watch a monitor during a free practice session ahead of the Malaysian Grand Prix in Sepang October 19, 2012. REUTERS/Bazuki Muhammad (MALAYSIA - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. rides during the Japanese Grand Prix in Motegi, north of Tokyo October 14, 2012. REUTERS/Toru Hanai (JAPAN - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. performs a wheelie at the end of a free practice session for Sunday's Japanese Grand Prix in Motegi, north of Tokyo October 12, 2012. REUTERS/Toru Hanai (JAPAN - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. walks to attend a news conference for Sunday's Japanese Grand Prix in Motegi, north of Tokyo October 11, 2012. REUTERS/Toru Hanai (JAPAN - Tags: SPORT MOTORSPORT) 

(L-R) Yamaha MotoGP rider Andrea Dovizioso of Italy, Honda MotoGP rider Dani Pedrosa of Spain, Yamaha MotoGP rider Jorge Lorenzo of Spain, Honda MotoGP rider Casey Stoner of Australia and Ducati MotoGP rider Nicky Hayden of the U.S. pose for photos after a news conference for Sunday's Japanese Grand Prix in Motegi, north of Tokyo October 11, 2012. REUTERS/Toru Hanai (JAPAN - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. takes a curve during the first practice session of the San Marino motorcycling Grand Prix at the Misano circuit September 14, 2012.
REUTERS/Alessandro Bianchi (ITALY - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. leaves the pit during the first practice session of the San Marino motorcycling Grand Prix at the Misano circuit September 14, 2012. REUTERS/Max Rossi (ITALY - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. looks on during the first practice session of the San Marino motorcycling Grand Prix at the Misano circuit September 14, 2012. REUTERS/Max Rossi (ITALY - Tags: SPORT MOTORSPORT HEADSHOT) 

Ducati MotoGP rider Nicky Hayden of the U.S. looks on during the MotoGP qualifying round at the Indianapolis Motor Speedway in Indianapolis August 18, 2012. The Indianapolis Grand Prix is scheduled to run August 19, 2012. REUTERS/Pat Cocciadiferro (UNITED STATES - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. Rides during MotoGP practice at the Indianapolis Motor Speedway in Indianapolis August 18, 2012. The Indianaplis Grand Prix is scheduled to be run August 19, 2012. REUTERS/Pat Cocciadiferro (UNITED STATES - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden (R) of the U.S. leads a pack of MotoGP riders during a practice session at the Indianapolis Motor Speedway in Indianapolis August 18, 2012. The Indianapolis Grand Prix is scheduled to run August 19, 2012. REUTERS/Pat Cocciadiferro (UNITED STATES - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. gets a push from the garage area from a crew member during MotoGP practice at the Indianapolis Motor Speedway in Indianapolis August 17, 2012. The Indianapolis Grand Prix is scheduled to be run August 19, 2012. REUTERS/Brent Smith (UNITED STATES - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. waits in his team garage during MotoGP practice at the Indianapolis Motor Speedway in Indianapolis August 17, 2012. The Indianapolis Grand Prix is scheduled to be run August 19, 2012. REUTERS/Brent Smith (UNITED STATES - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden (L) of the U.S. rides a scooter trailing an unidentified man during MotoGP practice at the Indianapolis Motor Speedway in Indianapolis August 17, 2012. The Indianapolis Grand Prix is scheduled to be run August 19, 2012. REUTERS/Brent Smith (UNITED STATES - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. rides during MotoGP practice at the Indianapolis Motor Speedway in Indianapolis August 17, 2012. The Indianapolis Grand Prix is scheduled to be run August 19, 2012. REUTERS/Brent Smith (UNITED STATES - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden (L) of the U.S. rides ahead of other riders during their MotoGP practice at the Indianapolis Motor Speedway in Indianapolis August 17, 2012. The Indianapolis Grand Prix is scheduled to run August 19, 2012. REUTERS/Brent Smith (UNITED STATES - Tags: SPORT MOTORSPORT TPX IMAGES OF THE DAY) 

Ducati MotoGP rider Nicky Hayden of the U.S. rides during MotoGP practice at the Indianapolis Motor Speedway in Indianapolis August 17, 2012. The Indianapolis Grand Prix is scheduled to run August 19, 2012. REUTERS/Brent Smith (UNITED STATES - Tags: SPORT MOTORSPORT) 

Nicky Hayden of the U.S. (front) gives a lift to Valentino Rossi of Italy on the back of his motorcycle after Rossi crashed his motorcycle following the U.S. Grand Prix Moto GP world championship motorcycle race in Monterey, California, July 29, 2012. REUTERS/Beck Diefenbach (UNITED STATES - Tags: SPORT MOTORSPORT) 

Honda's Casey Stoner of Australia (L) accelerates through a turn behind Ducati's Nicky Hayden of the U.S. during the former's second place qualifying finish at the U.S. Grand Prix Moto GP world championship motorcycle race in Monterey, California July 28, 2012. REUTERS/Robert Galbraith (UNITED STATES) 

Honda MotoGP rider Casey Stoner of Australia leads Ducati Nicky Hayden of the U.S. during the Italian motorcycle Grand Prix at Mugello circuit July 15, 2012. REUTERS/Max Rossi (ITALY - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. rides his bike during the qualifying session for the Italian motorcycle Grand Prix at Mugello circuit July 14, 2012. REUTERS/Max Rossi (ITALY - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. waves to the fans ahead of his teammate Valentino Rossi of Italy at the end of the qualifying session for the Italian motorcycle Grand Prix at Mugello circuit July 14, 2012. REUTERS/Max Rossi (ITALY - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. rides his bike during the qualifying session for the Italian motorcycle Grand Prix at Mugello circuit July 14, 2012. REUTERS/Max Rossi (ITALY - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. takes a curve during the third practice session for the Italian motorcycling Grand Prix at Mugello circuit July 14, 2012. REUTERS/Giampiero Sposito (ITALY - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. looks on during the third practice session for the Italian motorcycle Grand Prix at Mugello circuit July 14, 2012. REUTERS/Max Rossi (ITALY - Tags: SPORT MOTORSPORT) 

Ducati MotoGP riders Nicky Hayden (L) of the U.S. and Valentino Rossi of Italy test a start after the second practice session for the Italian motorcycling Grand Prix at Mugello circuit July 13, 2012. REUTERS/Giampiero Sposito (ITALY - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. takes a curve during the first practice session for the Italian motorcycle Grand Prix at Mugello circuit July 13, 2012. REUTERS/Max Rossi (ITALY - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. (L) talks to his mechanic in his box during the first practice session for the Italian motorcycling Grand Prix at Mugello circuit July 13, 2012. REUTERS/Giampiero Sposito (ITALY - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. rides during the qualifying practice of the Netherlands Grand Prix in Assen June 29, 2012. REUTERS/Patrick Post (NETHERLANDS - Tags: SPORT MOTORSPORT) 

Yamaha MotoGP rider Jorge Lorenzo of Spain races ahead of Ducati MotoGP rider Nicky Hayden of the U.S. and Ducati MotoGP rider Hector Barbera of Spain during the qualifying race for the British motorcycling Grand Prix at the Silverstone circuit, central England, June 16, 2012 REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. crashes during qualifying for the British motorcycling Grand Prix at the Silverstone circuit, central England, June 16, 2012. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. crashes during qualifying for the British motorcycling Grand Prix at the Silverstone circuit, central England, June 16, 2012. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. crashes during qualifying for the British motorcycling Grand Prix at the Silverstone circuit, central England, June 16, 2012. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. crashes during qualifying for the British motorcycling Grand Prix at the Silverstone circuit, central England, June 16, 2012. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. crashes during qualifying for the British motorcycling Grand Prix at the Silverstone circuit, central England, June 16, 2012. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. prepares inside his box during the second practice session of the British motorcycling Grand Prix at Silverstone circuit, central England, June 15, 2012. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. races during the first practice session of the British motorcycling Grand Prix at Silverstone circuit, central England, June 15, 2012. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. races during the first practice session of the British motorcycling Grand Prix at Silverstone circuit, central England, June 15, 2012. REUTERS/Stefan Wermuth (BRITAIN - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. drinks inside the box during a training session at Circuit de Catalunya in Montmelo, near Barcelona, June 4, 2012. REUTERS/Albert Gea (SPAIN - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. reacts inside the box during a training session at Circuit de Catalunya in Montmelo, near Barcelona, June 4, 2012. REUTERS/Albert Gea (SPAIN - Tags: SPORT MOTORSPORT HEADSHOT) 

Ducati MotoGP rider Nicky Hayden of the U.S. does a wheelie during the second free practice of the Catalunya MotoGP Grand Prix in Montmelo, near Barcelona, June 1, 2012. REUTERS/Albert Gea (SPAIN - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of U.S reads results during qualifying practice for the MotoGP motorcycling French Grand Prix at Le Mans circuit in central France May 19, 2012. The circuit hosts the MotoGP, Moto2 and Moto3 motorcycle Grand Prix races on Sunday. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of U.S adjusts his helmet during qualifying practice for the MotoGP motorcycling French Grand Prix at Le Mans circuit in central France May 19, 2012. The circuit hosts the MotoGP, Moto2 and Moto3 motorcycle Grand Prix races on Sunday. REUTERS/Regis Duvignau (FRANCE - Tags: SPORT MOTORSPORT) 

Yamaha MotoGP rider Jorge Lorenzo of Spain (C), Ducati's Nicky Hayden of the U.S (L) and Aspar's Randy de Puniet of France arrive for a news conference in Jerez April 26, 2012. The Spanish MotoGP Grand Prix will take place April 29, 2012 at Jerez circuit. REUTERS/Jon Nazca (SPAIN - Tags: SPORT MOTORSPORT) 

MotoGP riders attend a news conference in Jerez April 26, 2012. From L to R: Ducati's Nicky Hayden of the U.S, Honda's Casey Stoner of Australia, Yamaha's Jorge Lorenzo of Spain, Honda's Monster Yamaha Tech 3's Cal Crutchlow of England and Aspar's Randy de Puniet of France. The Spanish MotoGP Grand Prix will take place April 29, 2012 at Jerez circuit.
REUTERS/Jon Nazca (SPAIN - Tags: SPORT MOTOR RACING) 

Ducati MotoGP rider Nicky Hayden of the U.S. rides during the qualifying session at the Qatar MotoGP Grand Prix at Losail International Circuit in Doha April 7, 2012. REUTERS/Fadi Al-Assaad (QATAR - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. rides during the qualifying session at the Qatar MotoGP Grand Prix at Losail International Circuit in Doha April 7, 2012. REUTERS/Fadi Al-Assaad (QATAR - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. rides during a free practice session of the MotoGP World Championship at the Losail International circuit in Doha April 6, 2012. REUTERS/Fadi Al-Assaad (QATAR - Tags: SPORT MOTORSPORT) 

Ducati MotoGP rider Nicky Hayden of the U.S. rides during the free practice session of the MotoGP World Championship at the Losail International circuit in Doha April 6, 2012. REUTERS/Fadi Al-Assaad (QATAR - Tags: SPORT MOTORSPORT) 

Honda MotoGP rider Casey Stoner (L) of Australia watches as Ducati MotoGP rider Nicky Hayden of the U.S. a wheelie during the free practice session of the MotoGP World Championship at the Losail International circuit in Doha April 6, 2012. REUTERS/Fadi Al-Assaad (QATAR - Tags: SPORT MOTORSPORT) 

Honda MotoGP rider Casey Stoner (L) of Australia watches as Ducati MotoGP rider Nicky Hayden of the U.S. a wheelie during the free practice session of the MotoGP World Championship at the Losail International circuit in Doha April 6, 2012. REUTERS/Fadi Al-Assaad (QATAR - Tags: SPORT MOTORSPORT)