Sports

Disappointing qualifying session for Red Bull in inaugural Russian Grand Prix

  • Red Bull driver Sebastian Vettel of Germany prepares to start from the garage during the third free practice at the 'Sochi Autodrom' Formula One circuit , in Sochi, Russia, Saturday, Oct. 11, 2014. Formula One championship leader Lewis Hamilton edged Mercedes teammate Nico Rosberg in the final practice Saturday for the Russian Grand Prix. The inaugural Russian GP will be held on Sunday in Sochi, the Black Sea resort that hosted this year's Winter Olympics.(AP Photo/Pavel Golovkin)

    Red Bull driver Sebastian Vettel of Germany prepares to start from the garage during the third free practice at the 'Sochi Autodrom' Formula One circuit , in Sochi, Russia, Saturday, Oct. 11, 2014. Formula One championship leader Lewis Hamilton edged Mercedes teammate Nico Rosberg in the final practice Saturday for the Russian Grand Prix. The inaugural Russian GP will be held on Sunday in Sochi, the Black Sea resort that hosted this year's Winter Olympics.(AP Photo/Pavel Golovkin)  (The Associated Press)

  • Red Bull driver Sebastian Vettel of Germany steers his car during the third free practice at the 'Sochi Autodrom' Formula One circuit , in Sochi, Russia, Saturday, Oct. 11, 2014. Formula One championship leader Lewis Hamilton edged Mercedes teammate Nico Rosberg in the final practice Saturday for the Russian Grand Prix. The inaugural Russian GP will be held on Sunday in Sochi, the Black Sea resort that hosted this year's Winter Olympics. (AP Photo/Luca Bruno)

    Red Bull driver Sebastian Vettel of Germany steers his car during the third free practice at the 'Sochi Autodrom' Formula One circuit , in Sochi, Russia, Saturday, Oct. 11, 2014. Formula One championship leader Lewis Hamilton edged Mercedes teammate Nico Rosberg in the final practice Saturday for the Russian Grand Prix. The inaugural Russian GP will be held on Sunday in Sochi, the Black Sea resort that hosted this year's Winter Olympics. (AP Photo/Luca Bruno)  (The Associated Press)

Sebastian Vettel's last season with Red Bull failed to improve Saturday, with the four-time defending F1 champion enduring another poor qualifying session at the inaugural Russian Grand Prix.

Vettel failed to make it into the final of the three qualifying sessions but will start 10th because of another driver's penalty.

The German has announced that he is leaving Red Bull at the end of the season. He has not said which team he will join, but all speculation has pointed to Ferrari.

Vettel says he "wasn't comfortable in the car today. It was very difficult."

Teammate Daniel Ricciardo, who has had a more successful season, will start sixth, also benefiting from the five-place penalty for Kevin Magnussen of McLaren.

Red Bull is set to lose the constructors' title to Mercedes.