Marc Marquez will attempt to sign off his first MotoGP title defeat, and recent Sepang controversy, with victory in the Valencia season finale.
The double MotoGP champion will surrender his crown to either Valentino Rossi or Jorge Lorenzo on Sunday, while the fallout from his Malaysian clash with Rossi continues.
Marquez fell after contact with Rossi during a heated battle for third, resulting in punishment for the Italian and a bitter war of words between riders, fans, teams, manufacturers and sponsors.
Ironically, Rossi's titles chances will be significantly boosted if the likes of Marquez or Repsol Honda team-mate Dani Pedrosa beat Lorenzo on Sunday.
"It's been a difficult week after what happened in Sepang but I've tried my best to put it behind me and concentrate on my training and looking forward to the final race of the season,” said Marquez, who was also involved in a scuffle with Italian TV at his house.
“We want to finish on a high note so we will work hard from Friday to get the bike setup well and give ourselves the best chance for the race.
“I've had mixed results here in the past but I enjoy racing here in front of the home fans. I hope the events of the past week can be put behind us and we can focus on the race."
Marquez has won five races this season and victory at Valencia would put him equal with Lorenzo for the most wins this year.
However Marquez's six DNFs mean he is destined to finish third in the final standings whatever happens on Sunday.
Marquez won at Valencia in 2012 (Moto2) and 2014 (MotoGP) while Pedrosa has been victorious three times in the MotoGP class (2012, 2009, 2007) twice in 250cc (2005, 2004) and once in 125cc (2002).
"It's been a great but tiring few weeks," said Pedrosa, who won two of the three flyaway races to build a two-point lead over Andrea Iannone for fourth in the world championship.
"We've worked hard and won two races and this is something I couldn't have imagined in Qatar at the beginning of the year [where he sought arm pump surgery].
"Now we arrive in Valencia for the final race of 2015 and it would be great to finish with another victory. I've had good results here in the past so I hope to be able to put on a good show in front of all the Spanish fans and fight for the win."